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/wp-includes/ -> general-template.php (source)

   1  <?php
   2  /**
   3   * General template tags that can go anywhere in a template.
   4   *
   5   * @package WordPress
   6   * @subpackage Template
   7   */
   8  
   9  /**
  10   * Load header template.
  11   *
  12   * Includes the header template for a theme or if a name is specified then a
  13   * specialised header will be included. If the theme contains no header.php file
  14   * then the header from the default theme will be included.
  15   *
  16   * For the parameter, if the file is called "header-special.php" then specify
  17   * "special".
  18   *
  19   * @uses locate_template()
  20   * @since 1.5.0
  21   * @uses do_action() Calls 'get_header' action.
  22   *
  23   * @param string $name The name of the specialised header.
  24   */
  25  function get_header( $name = null ) {
  26      do_action( 'get_header', $name );
  27  
  28      $templates = array();
  29      if ( isset($name) )
  30          $templates[] = "header-{$name}.php";
  31  
  32      $templates[] = "header.php";
  33  
  34      if ('' == locate_template($templates, true))
  35          load_template( get_theme_root() . '/default/header.php');
  36  }
  37  
  38  /**
  39   * Load footer template.
  40   *
  41   * Includes the footer template for a theme or if a name is specified then a
  42   * specialised footer will be included. If the theme contains no footer.php file
  43   * then the footer from the default theme will be included.
  44   *
  45   * For the parameter, if the file is called "footer-special.php" then specify
  46   * "special".
  47   *
  48   * @uses locate_template()
  49   * @since 1.5.0
  50   * @uses do_action() Calls 'get_footer' action.
  51   *
  52   * @param string $name The name of the specialised footer.
  53   */
  54  function get_footer( $name = null ) {
  55      do_action( 'get_footer', $name );
  56  
  57      $templates = array();
  58      if ( isset($name) )
  59          $templates[] = "footer-{$name}.php";
  60  
  61      $templates[] = "footer.php";
  62  
  63      if ('' == locate_template($templates, true))
  64          load_template( get_theme_root() . '/default/footer.php');
  65  }
  66  
  67  /**
  68   * Load sidebar template.
  69   *
  70   * Includes the sidebar template for a theme or if a name is specified then a
  71   * specialised sidebar will be included. If the theme contains no sidebar.php
  72   * file then the sidebar from the default theme will be included.
  73   *
  74   * For the parameter, if the file is called "sidebar-special.php" then specify
  75   * "special".
  76   *
  77   * @uses locate_template()
  78   * @since 1.5.0
  79   * @uses do_action() Calls 'get_sidebar' action.
  80   *
  81   * @param string $name The name of the specialised sidebar.
  82   */
  83  function get_sidebar( $name = null ) {
  84      do_action( 'get_sidebar', $name );
  85  
  86      $templates = array();
  87      if ( isset($name) )
  88          $templates[] = "sidebar-{$name}.php";
  89  
  90      $templates[] = "sidebar.php";
  91  
  92      if ('' == locate_template($templates, true))
  93          load_template( get_theme_root() . '/default/sidebar.php');
  94  }
  95  
  96  /**
  97   * Display search form.
  98   *
  99   * Will first attempt to locate the searchform.php file in either the child or
 100   * the parent, then load it. If it doesn't exist, then the default search form
 101   * will be displayed. The default search form is HTML, which will be displayed.
 102   * There is a filter applied to the search form HTML in order to edit or replace
 103   * it. The filter is 'get_search_form'.
 104   *
 105   * This function is primarily used by themes which want to hardcode the search
 106   * form into the sidebar and also by the search widget in WordPress.
 107   *
 108   * There is also an action that is called whenever the function is run called,
 109   * 'get_search_form'. This can be useful for outputting JavaScript that the
 110   * search relies on or various formatting that applies to the beginning of the
 111   * search. To give a few examples of what it can be used for.
 112   *
 113   * @since 2.7.0
 114   */
 115  function get_search_form() {
 116      do_action( 'get_search_form' );
 117  
 118      $search_form_template = locate_template(array('searchform.php'));
 119      if ( '' != $search_form_template ) {
 120          require($search_form_template);
 121          return;
 122      }
 123  
 124      $form = '<form role="search" method="get" id="searchform" action="' . get_option('home') . '/" >
 125      <div><label class="screen-reader-text" for="s">' . __('Search for:') . '</label>
 126      <input type="text" value="' . esc_attr(apply_filters('the_search_query', get_search_query())) . '" name="s" id="s" />
 127      <input type="submit" id="searchsubmit" value="'. esc_attr__('Search') .'" />
 128      </div>
 129      </form>';
 130  
 131      echo apply_filters('get_search_form', $form);
 132  }
 133  
 134  /**
 135   * Display the Log In/Out link.
 136   *
 137   * Displays a link, which allows the user to navigate to the Log In page to log in
 138   * or log out depending on whether or not they are currently logged in.
 139   *
 140   * @since 1.5.0
 141   * @uses apply_filters() Calls 'loginout' hook on HTML link content.
 142   *
 143   * @param string $redirect Optional path to redirect to on login/logout.
 144   */
 145  function wp_loginout($redirect = '') {
 146      if ( ! is_user_logged_in() )
 147          $link = '<a href="' . esc_url( wp_login_url($redirect) ) . '">' . __('Log in') . '</a>';
 148      else
 149          $link = '<a href="' . esc_url( wp_logout_url($redirect) ) . '">' . __('Log out') . '</a>';
 150  
 151      echo apply_filters('loginout', $link);
 152  }
 153  
 154  /**
 155   * Returns the Log Out URL.
 156   *
 157   * Returns the URL that allows the user to log out of the site
 158   *
 159   * @since 2.7
 160   * @uses wp_nonce_url() To protect against CSRF
 161   * @uses site_url() To generate the log in URL
 162   * @uses apply_filters() calls 'logout_url' hook on final logout url
 163   *
 164   * @param string $redirect Path to redirect to on logout.
 165   */
 166  function wp_logout_url($redirect = '') {
 167      $args = array( 'action' => 'logout' );
 168      if ( !empty($redirect) ) {
 169          $args['redirect_to'] = urlencode( $redirect );
 170      }
 171  
 172      $logout_url = add_query_arg($args, site_url('wp-login.php', 'login'));
 173      $logout_url = wp_nonce_url( $logout_url, 'log-out' );
 174  
 175      return apply_filters('logout_url', $logout_url, $redirect);
 176  }
 177  
 178  /**
 179   * Returns the Log In URL.
 180   *
 181   * Returns the URL that allows the user to log in to the site
 182   *
 183   * @since 2.7
 184   * @uses site_url() To generate the log in URL
 185   * @uses apply_filters() calls 'login_url' hook on final login url
 186   *
 187   * @param string $redirect Path to redirect to on login.
 188   */
 189  function wp_login_url($redirect = '') {
 190      $login_url = site_url('wp-login.php', 'login');
 191  
 192      if ( !empty($redirect) ) {
 193          $login_url = add_query_arg('redirect_to', urlencode($redirect), $login_url);
 194      }
 195  
 196      return apply_filters('login_url', $login_url, $redirect);
 197  }
 198  
 199  /**
 200   * Returns the Lost Password URL.
 201   *
 202   * Returns the URL that allows the user to retrieve the lost password
 203   *
 204   * @since 2.8.0
 205   * @uses site_url() To generate the lost password URL
 206   * @uses apply_filters() calls 'lostpassword_url' hook on the lostpassword url
 207   *
 208   * @param string $redirect Path to redirect to on login.
 209   */
 210  function wp_lostpassword_url($redirect = '') {
 211      $args = array( 'action' => 'lostpassword' );
 212      if ( !empty($redirect) ) {
 213          $args['redirect_to'] = $redirect;
 214      }
 215  
 216      $lostpassword_url = add_query_arg($args, site_url('wp-login.php', 'login'));
 217      return apply_filters('lostpassword_url', $lostpassword_url, $redirect);
 218  }
 219  
 220  /**
 221   * Display the Registration or Admin link.
 222   *
 223   * Display a link which allows the user to navigate to the registration page if
 224   * not logged in and registration is enabled or to the dashboard if logged in.
 225   *
 226   * @since 1.5.0
 227   * @uses apply_filters() Calls 'register' hook on register / admin link content.
 228   *
 229   * @param string $before Text to output before the link (defaults to <li>).
 230   * @param string $after Text to output after the link (defaults to </li>).
 231   */
 232  function wp_register( $before = '<li>', $after = '</li>' ) {
 233  
 234      if ( ! is_user_logged_in() ) {
 235          if ( get_option('users_can_register') )
 236              $link = $before . '<a href="' . site_url('wp-login.php?action=register', 'login') . '">' . __('Register') . '</a>' . $after;
 237          else
 238              $link = '';
 239      } else {
 240          $link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;
 241      }
 242  
 243      echo apply_filters('register', $link);
 244  }
 245  
 246  /**
 247   * Theme container function for the 'wp_meta' action.
 248   *
 249   * The 'wp_meta' action can have several purposes, depending on how you use it,
 250   * but one purpose might have been to allow for theme switching.
 251   *
 252   * @since 1.5.0
 253   * @link http://trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.
 254   * @uses do_action() Calls 'wp_meta' hook.
 255   */
 256  function wp_meta() {
 257      do_action('wp_meta');
 258  }
 259  
 260  /**
 261   * Display information about the blog.
 262   *
 263   * @see get_bloginfo() For possible values for the parameter.
 264   * @since 0.71
 265   *
 266   * @param string $show What to display.
 267   */
 268  function bloginfo($show='') {
 269      echo get_bloginfo($show, 'display');
 270  }
 271  
 272  /**
 273   * Retrieve information about the blog.
 274   *
 275   * Some show parameter values are deprecated and will be removed in future
 276   * versions. Care should be taken to check the function contents and know what
 277   * the deprecated blog info options are. Options without "// DEPRECATED" are
 278   * the preferred and recommended ways to get the information.
 279   *
 280   * The possible values for the 'show' parameter are listed below.
 281   * <ol>
 282   * <li><strong>url<strong> - Blog URI to homepage.</li>
 283   * <li><strong>wpurl</strong> - Blog URI path to WordPress.</li>
 284   * <li><strong>description</strong> - Secondary title</li>
 285   * </ol>
 286   *
 287   * The feed URL options can be retrieved from 'rdf_url' (RSS 0.91),
 288   * 'rss_url' (RSS 1.0), 'rss2_url' (RSS 2.0), or 'atom_url' (Atom feed). The
 289   * comment feeds can be retrieved from the 'comments_atom_url' (Atom comment
 290   * feed) or 'comments_rss2_url' (RSS 2.0 comment feed).
 291   *
 292   * There are many other options and you should check the function contents:
 293   * {@source 32 37}
 294   *
 295   * @since 0.71
 296   *
 297   * @param string $show Blog info to retrieve.
 298   * @param string $filter How to filter what is retrieved.
 299   * @return string Mostly string values, might be empty.
 300   */
 301  function get_bloginfo($show = '', $filter = 'raw') {
 302  
 303      switch($show) {
 304          case 'url' :
 305          case 'home' : // DEPRECATED
 306          case 'siteurl' : // DEPRECATED
 307              $output = get_option('home');
 308              break;
 309          case 'wpurl' :
 310              $output = get_option('siteurl');
 311              break;
 312          case 'description':
 313              $output = get_option('blogdescription');
 314              break;
 315          case 'rdf_url':
 316              $output = get_feed_link('rdf');
 317              break;
 318          case 'rss_url':
 319              $output = get_feed_link('rss');
 320              break;
 321          case 'rss2_url':
 322              $output = get_feed_link('rss2');
 323              break;
 324          case 'atom_url':
 325              $output = get_feed_link('atom');
 326              break;
 327          case 'comments_atom_url':
 328              $output = get_feed_link('comments_atom');
 329              break;
 330          case 'comments_rss2_url':
 331              $output = get_feed_link('comments_rss2');
 332              break;
 333          case 'pingback_url':
 334              $output = get_option('siteurl') .'/xmlrpc.php';
 335              break;
 336          case 'stylesheet_url':
 337              $output = get_stylesheet_uri();
 338              break;
 339          case 'stylesheet_directory':
 340              $output = get_stylesheet_directory_uri();
 341              break;
 342          case 'template_directory':
 343          case 'template_url':
 344              $output = get_template_directory_uri();
 345              break;
 346          case 'admin_email':
 347              $output = get_option('admin_email');
 348              break;
 349          case 'charset':
 350              $output = get_option('blog_charset');
 351              if ('' == $output) $output = 'UTF-8';
 352              break;
 353          case 'html_type' :
 354              $output = get_option('html_type');
 355              break;
 356          case 'version':
 357              global $wp_version;
 358              $output = $wp_version;
 359              break;
 360          case 'language':
 361              $output = get_locale();
 362              $output = str_replace('_', '-', $output);
 363              break;
 364          case 'text_direction':
 365              global $wp_locale;
 366              $output = $wp_locale->text_direction;
 367              break;
 368          case 'name':
 369          default:
 370              $output = get_option('blogname');
 371              break;
 372      }
 373  
 374      $url = true;
 375      if (strpos($show, 'url') === false &&
 376          strpos($show, 'directory') === false &&
 377          strpos($show, 'home') === false)
 378          $url = false;
 379  
 380      if ( 'display' == $filter ) {
 381          if ( $url )
 382              $output = apply_filters('bloginfo_url', $output, $show);
 383          else
 384              $output = apply_filters('bloginfo', $output, $show);
 385      }
 386  
 387      return $output;
 388  }
 389  
 390  /**
 391   * Display or retrieve page title for all areas of blog.
 392   *
 393   * By default, the page title will display the separator before the page title,
 394   * so that the blog title will be before the page title. This is not good for
 395   * title display, since the blog title shows up on most tabs and not what is
 396   * important, which is the page that the user is looking at.
 397   *
 398   * There are also SEO benefits to having the blog title after or to the 'right'
 399   * or the page title. However, it is mostly common sense to have the blog title
 400   * to the right with most browsers supporting tabs. You can achieve this by
 401   * using the seplocation parameter and setting the value to 'right'. This change
 402   * was introduced around 2.5.0, in case backwards compatibility of themes is
 403   * important.
 404   *
 405   * @since 1.0.0
 406   *
 407   * @param string $sep Optional, default is '&raquo;'. How to separate the various items within the page title.
 408   * @param bool $display Optional, default is true. Whether to display or retrieve title.
 409   * @param string $seplocation Optional. Direction to display title, 'right'.
 410   * @return string|null String on retrieve, null when displaying.
 411   */
 412  function wp_title($sep = '&raquo;', $display = true, $seplocation = '') {
 413      global $wpdb, $wp_locale, $wp_query;
 414  
 415      $cat = get_query_var('cat');
 416      $tag = get_query_var('tag_id');
 417      $category_name = get_query_var('category_name');
 418      $author = get_query_var('author');
 419      $author_name = get_query_var('author_name');
 420      $m = get_query_var('m');
 421      $year = get_query_var('year');
 422      $monthnum = get_query_var('monthnum');
 423      $day = get_query_var('day');
 424      $search = get_query_var('s');
 425      $title = '';
 426  
 427      $t_sep = '%WP_TITILE_SEP%'; // Temporary separator, for accurate flipping, if necessary
 428  
 429      // If there's a category
 430      if ( !empty($cat) ) {
 431              // category exclusion
 432              if ( !stristr($cat,'-') )
 433                  $title = apply_filters('single_cat_title', get_the_category_by_ID($cat));
 434      } elseif ( !empty($category_name) ) {
 435          if ( stristr($category_name,'/') ) {
 436                  $category_name = explode('/',$category_name);
 437                  if ( $category_name[count($category_name)-1] )
 438                      $category_name = $category_name[count($category_name)-1]; // no trailing slash
 439                  else
 440                      $category_name = $category_name[count($category_name)-2]; // there was a trailling slash
 441          }
 442          $cat = get_term_by('slug', $category_name, 'category', OBJECT, 'display');
 443          if ( $cat )
 444              $title = apply_filters('single_cat_title', $cat->name);
 445      }
 446  
 447      if ( !empty($tag) ) {
 448          $tag = get_term($tag, 'post_tag', OBJECT, 'display');
 449          if ( is_wp_error( $tag ) )
 450              return $tag;
 451          if ( ! empty($tag->name) )
 452              $title = apply_filters('single_tag_title', $tag->name);
 453      }
 454  
 455      // If there's an author
 456      if ( !empty($author) ) {
 457          $title = get_userdata($author);
 458          $title = $title->display_name;
 459      }
 460      if ( !empty($author_name) ) {
 461          // We do a direct query here because we don't cache by nicename.
 462          $title = $wpdb->get_var($wpdb->prepare("SELECT display_name FROM $wpdb->users WHERE user_nicename = %s", $author_name));
 463      }
 464  
 465      // If there's a month
 466      if ( !empty($m) ) {
 467          $my_year = substr($m, 0, 4);
 468          $my_month = $wp_locale->get_month(substr($m, 4, 2));
 469          $my_day = intval(substr($m, 6, 2));
 470          $title = "$my_year" . ($my_month ? "$t_sep$my_month" : "") . ($my_day ? "$t_sep$my_day" : "");
 471      }
 472  
 473      if ( !empty($year) ) {
 474          $title = $year;
 475          if ( !empty($monthnum) )
 476              $title .= "$t_sep" . $wp_locale->get_month($monthnum);
 477          if ( !empty($day) )
 478              $title .= "$t_sep" . zeroise($day, 2);
 479      }
 480  
 481      // If there is a post
 482      if ( is_single() || ( is_home() && !is_front_page() ) || ( is_page() && !is_front_page() ) ) {
 483          $post = $wp_query->get_queried_object();
 484          $title = strip_tags( apply_filters( 'single_post_title', $post->post_title ) );
 485      }
 486  
 487      // If there's a taxonomy
 488      if ( is_tax() ) {
 489          $taxonomy = get_query_var( 'taxonomy' );
 490          $tax = get_taxonomy( $taxonomy );
 491          $tax = $tax->label;
 492          $term = $wp_query->get_queried_object();
 493          $term = $term->name;
 494          $title = "$tax$t_sep$term";
 495      }
 496  
 497      //If it's a search
 498      if ( is_search() ) {
 499          /* translators: 1: separator, 2: search phrase */
 500          $title = sprintf(__('Search Results %1$s %2$s'), $t_sep, strip_tags($search));
 501      }
 502  
 503      if ( is_404() ) {
 504          $title = __('Page not found');
 505      }
 506  
 507      $prefix = '';
 508      if ( !empty($title) )
 509          $prefix = " $sep ";
 510  
 511       // Determines position of the separator and direction of the breadcrumb
 512      if ( 'right' == $seplocation ) { // sep on right, so reverse the order
 513          $title_array = explode( $t_sep, $title );
 514          $title_array = array_reverse( $title_array );
 515          $title = implode( " $sep ", $title_array ) . $prefix;
 516      } else {
 517          $title_array = explode( $t_sep, $title );
 518          $title = $prefix . implode( " $sep ", $title_array );
 519      }
 520  
 521      $title = apply_filters('wp_title', $title, $sep, $seplocation);
 522  
 523      // Send it out
 524      if ( $display )
 525          echo $title;
 526      else
 527          return $title;
 528  
 529  }
 530  
 531  /**
 532   * Display or retrieve page title for post.
 533   *
 534   * This is optimized for single.php template file for displaying the post title.
 535   * Only useful for posts, does not support pages for example.
 536   *
 537   * It does not support placing the separator after the title, but by leaving the
 538   * prefix parameter empty, you can set the title separator manually. The prefix
 539   * does not automatically place a space between the prefix, so if there should
 540   * be a space, the parameter value will need to have it at the end.
 541   *
 542   * @since 0.71
 543   * @uses $wpdb
 544   *
 545   * @param string $prefix Optional. What to display before the title.
 546   * @param bool $display Optional, default is true. Whether to display or retrieve title.
 547   * @return string|null Title when retrieving, null when displaying or failure.
 548   */
 549  function single_post_title($prefix = '', $display = true) {
 550      global $wpdb;
 551      $p = get_query_var('p');
 552      $name = get_query_var('name');
 553  
 554      if ( intval($p) || '' != $name ) {
 555          if ( !$p )
 556              $p = $wpdb->get_var($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_name = %s", $name));
 557          $post = & get_post($p);
 558          $title = $post->post_title;
 559          $title = apply_filters('single_post_title', $title);
 560          if ( $display )
 561              echo $prefix.strip_tags($title);
 562          else
 563              return strip_tags($title);
 564      }
 565  }
 566  
 567  /**
 568   * Display or retrieve page title for category archive.
 569   *
 570   * This is useful for category template file or files, because it is optimized
 571   * for category page title and with less overhead than {@link wp_title()}.
 572   *
 573   * It does not support placing the separator after the title, but by leaving the
 574   * prefix parameter empty, you can set the title separator manually. The prefix
 575   * does not automatically place a space between the prefix, so if there should
 576   * be a space, the parameter value will need to have it at the end.
 577   *
 578   * @since 0.71
 579   *
 580   * @param string $prefix Optional. What to display before the title.
 581   * @param bool $display Optional, default is true. Whether to display or retrieve title.
 582   * @return string|null Title when retrieving, null when displaying or failure.
 583   */
 584  function single_cat_title($prefix = '', $display = true ) {
 585      $cat = intval( get_query_var('cat') );
 586      if ( !empty($cat) && !(strtoupper($cat) == 'ALL') ) {
 587          $my_cat_name = apply_filters('single_cat_title', get_the_category_by_ID($cat));
 588          if ( !empty($my_cat_name) ) {
 589              if ( $display )
 590                  echo $prefix.strip_tags($my_cat_name);
 591              else
 592                  return strip_tags($my_cat_name);
 593          }
 594      } else if ( is_tag() ) {
 595          return single_tag_title($prefix, $display);
 596      }
 597  }
 598  
 599  /**
 600   * Display or retrieve page title for tag post archive.
 601   *
 602   * Useful for tag template files for displaying the tag page title. It has less
 603   * overhead than {@link wp_title()}, because of its limited implementation.
 604   *
 605   * It does not support placing the separator after the title, but by leaving the
 606   * prefix parameter empty, you can set the title separator manually. The prefix
 607   * does not automatically place a space between the prefix, so if there should
 608   * be a space, the parameter value will need to have it at the end.
 609   *
 610   * @since 2.3.0
 611   *
 612   * @param string $prefix Optional. What to display before the title.
 613   * @param bool $display Optional, default is true. Whether to display or retrieve title.
 614   * @return string|null Title when retrieving, null when displaying or failure.
 615   */
 616  function single_tag_title($prefix = '', $display = true ) {
 617      if ( !is_tag() )
 618          return;
 619  
 620      $tag_id = intval( get_query_var('tag_id') );
 621  
 622      if ( !empty($tag_id) ) {
 623          $my_tag = &get_term($tag_id, 'post_tag', OBJECT, 'display');
 624          if ( is_wp_error( $my_tag ) )
 625              return false;
 626          $my_tag_name = apply_filters('single_tag_title', $my_tag->name);
 627          if ( !empty($my_tag_name) ) {
 628              if ( $display )
 629                  echo $prefix . $my_tag_name;
 630              else
 631                  return $my_tag_name;
 632          }
 633      }
 634  }
 635  
 636  /**
 637   * Display or retrieve page title for post archive based on date.
 638   *
 639   * Useful for when the template only needs to display the month and year, if
 640   * either are available. Optimized for just this purpose, so if it is all that
 641   * is needed, should be better than {@link wp_title()}.
 642   *
 643   * It does not support placing the separator after the title, but by leaving the
 644   * prefix parameter empty, you can set the title separator manually. The prefix
 645   * does not automatically place a space between the prefix, so if there should
 646   * be a space, the parameter value will need to have it at the end.
 647   *
 648   * @since 0.71
 649   *
 650   * @param string $prefix Optional. What to display before the title.
 651   * @param bool $display Optional, default is true. Whether to display or retrieve title.
 652   * @return string|null Title when retrieving, null when displaying or failure.
 653   */
 654  function single_month_title($prefix = '', $display = true ) {
 655      global $wp_locale;
 656  
 657      $m = get_query_var('m');
 658      $year = get_query_var('year');
 659      $monthnum = get_query_var('monthnum');
 660  
 661      if ( !empty($monthnum) && !empty($year) ) {
 662          $my_year = $year;
 663          $my_month = $wp_locale->get_month($monthnum);
 664      } elseif ( !empty($m) ) {
 665          $my_year = substr($m, 0, 4);
 666          $my_month = $wp_locale->get_month(substr($m, 4, 2));
 667      }
 668  
 669      if ( empty($my_month) )
 670          return false;
 671  
 672      $result = $prefix . $my_month . $prefix . $my_year;
 673  
 674      if ( !$display )
 675          return $result;
 676      echo $result;
 677  }
 678  
 679  /**
 680   * Retrieve archive link content based on predefined or custom code.
 681   *
 682   * The format can be one of four styles. The 'link' for head element, 'option'
 683   * for use in the select element, 'html' for use in list (either ol or ul HTML
 684   * elements). Custom content is also supported using the before and after
 685   * parameters.
 686   *
 687   * The 'link' format uses the link HTML element with the <em>archives</em>
 688   * relationship. The before and after parameters are not used. The text
 689   * parameter is used to describe the link.
 690   *
 691   * The 'option' format uses the option HTML element for use in select element.
 692   * The value is the url parameter and the before and after parameters are used
 693   * between the text description.
 694   *
 695   * The 'html' format, which is the default, uses the li HTML element for use in
 696   * the list HTML elements. The before parameter is before the link and the after
 697   * parameter is after the closing link.
 698   *
 699   * The custom format uses the before parameter before the link ('a' HTML
 700   * element) and the after parameter after the closing link tag. If the above
 701   * three values for the format are not used, then custom format is assumed.
 702   *
 703   * @since 1.0.0
 704   * @author Orien
 705   * @link http://icecode.com/ link navigation hack by Orien
 706   *
 707   * @param string $url URL to archive.
 708   * @param string $text Archive text description.
 709   * @param string $format Optional, default is 'html'. Can be 'link', 'option', 'html', or custom.
 710   * @param string $before Optional.
 711   * @param string $after Optional.
 712   * @return string HTML link content for archive.
 713   */
 714  function get_archives_link($url, $text, $format = 'html', $before = '', $after = '') {
 715      $text = wptexturize($text);
 716      $title_text = esc_attr($text);
 717      $url = esc_url($url);
 718  
 719      if ('link' == $format)
 720          $link_html = "\t<link rel='archives' title='$title_text' href='$url' />\n";
 721      elseif ('option' == $format)
 722          $link_html = "\t<option value='$url'>$before $text $after</option>\n";
 723      elseif ('html' == $format)
 724          $link_html = "\t<li>$before<a href='$url' title='$title_text'>$text</a>$after</li>\n";
 725      else // custom
 726          $link_html = "\t$before<a href='$url' title='$title_text'>$text</a>$after\n";
 727  
 728      $link_html = apply_filters( "get_archives_link", $link_html );
 729  
 730      return $link_html;
 731  }
 732  
 733  /**
 734   * Display archive links based on type and format.
 735   *
 736   * The 'type' argument offers a few choices and by default will display monthly
 737   * archive links. The other options for values are 'daily', 'weekly', 'monthly',
 738   * 'yearly', 'postbypost' or 'alpha'. Both 'postbypost' and 'alpha' display the
 739   * same archive link list, the difference between the two is that 'alpha'
 740   * will order by post title and 'postbypost' will order by post date.
 741   *
 742   * The date archives will logically display dates with links to the archive post
 743   * page. The 'postbypost' and 'alpha' values for 'type' argument will display
 744   * the post titles.
 745   *
 746   * The 'limit' argument will only display a limited amount of links, specified
 747   * by the 'limit' integer value. By default, there is no limit. The
 748   * 'show_post_count' argument will show how many posts are within the archive.
 749   * By default, the 'show_post_count' argument is set to false.
 750   *
 751   * For the 'format', 'before', and 'after' arguments, see {@link
 752   * get_archives_link()}. The values of these arguments have to do with that
 753   * function.
 754   *
 755   * @since 1.2.0
 756   *
 757   * @param string|array $args Optional. Override defaults.
 758   */
 759  function wp_get_archives($args = '') {
 760      global $wpdb, $wp_locale;
 761  
 762      $defaults = array(
 763          'type' => 'monthly', 'limit' => '',
 764          'format' => 'html', 'before' => '',
 765          'after' => '', 'show_post_count' => false,
 766          'echo' => 1
 767      );
 768  
 769      $r = wp_parse_args( $args, $defaults );
 770      extract( $r, EXTR_SKIP );
 771  
 772      if ( '' == $type )
 773          $type = 'monthly';
 774  
 775      if ( '' != $limit ) {
 776          $limit = absint($limit);
 777          $limit = ' LIMIT '.$limit;
 778      }
 779  
 780      // this is what will separate dates on weekly archive links
 781      $archive_week_separator = '&#8211;';
 782  
 783      // over-ride general date format ? 0 = no: use the date format set in Options, 1 = yes: over-ride
 784      $archive_date_format_over_ride = 0;
 785  
 786      // options for daily archive (only if you over-ride the general date format)
 787      $archive_day_date_format = 'Y/m/d';
 788  
 789      // options for weekly archive (only if you over-ride the general date format)
 790      $archive_week_start_date_format = 'Y/m/d';
 791      $archive_week_end_date_format    = 'Y/m/d';
 792  
 793      if ( !$archive_date_format_over_ride ) {
 794          $archive_day_date_format = get_option('date_format');
 795          $archive_week_start_date_format = get_option('date_format');
 796          $archive_week_end_date_format = get_option('date_format');
 797      }
 798  
 799      //filters
 800      $where = apply_filters('getarchives_where', "WHERE post_type = 'post' AND post_status = 'publish'", $r );
 801      $join = apply_filters('getarchives_join', "", $r);
 802  
 803      $output = '';
 804  
 805      if ( 'monthly' == $type ) {
 806          $query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date) ORDER BY post_date DESC $limit";
 807          $key = md5($query);
 808          $cache = wp_cache_get( 'wp_get_archives' , 'general');
 809          if ( !isset( $cache[ $key ] ) ) {
 810              $arcresults = $wpdb->get_results($query);
 811              $cache[ $key ] = $arcresults;
 812              wp_cache_add( 'wp_get_archives', $cache, 'general' );
 813          } else {
 814              $arcresults = $cache[ $key ];
 815          }
 816          if ( $arcresults ) {
 817              $afterafter = $after;
 818              foreach ( (array) $arcresults as $arcresult ) {
 819                  $url = get_month_link( $arcresult->year, $arcresult->month );
 820                  /* translators: 1: month name, 2: 4-digit year */
 821                  $text = sprintf(__('%1$s %2$d'), $wp_locale->get_month($arcresult->month), $arcresult->year);
 822                  if ( $show_post_count )
 823                      $after = '&nbsp;('.$arcresult->posts.')' . $afterafter;
 824                  $output .= get_archives_link($url, $text, $format, $before, $after);
 825              }
 826          }
 827      } elseif ('yearly' == $type) {
 828          $query = "SELECT YEAR(post_date) AS `year`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date) ORDER BY post_date DESC $limit";
 829          $key = md5($query);
 830          $cache = wp_cache_get( 'wp_get_archives' , 'general');
 831          if ( !isset( $cache[ $key ] ) ) {
 832              $arcresults = $wpdb->get_results($query);
 833              $cache[ $key ] = $arcresults;
 834              wp_cache_add( 'wp_get_archives', $cache, 'general' );
 835          } else {
 836              $arcresults = $cache[ $key ];
 837          }
 838          if ($arcresults) {
 839              $afterafter = $after;
 840              foreach ( (array) $arcresults as $arcresult) {
 841                  $url = get_year_link($arcresult->year);
 842                  $text = sprintf('%d', $arcresult->year);
 843                  if ($show_post_count)
 844                      $after = '&nbsp;('.$arcresult->posts.')' . $afterafter;
 845                  $output .= get_archives_link($url, $text, $format, $before, $after);
 846              }
 847          }
 848      } elseif ( 'daily' == $type ) {
 849          $query = "SELECT YEAR(post_date) AS `year`, MONTH(post_date) AS `month`, DAYOFMONTH(post_date) AS `dayofmonth`, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY YEAR(post_date), MONTH(post_date), DAYOFMONTH(post_date) ORDER BY post_date DESC $limit";
 850          $key = md5($query);
 851          $cache = wp_cache_get( 'wp_get_archives' , 'general');
 852          if ( !isset( $cache[ $key ] ) ) {
 853              $arcresults = $wpdb->get_results($query);
 854              $cache[ $key ] = $arcresults;
 855              wp_cache_add( 'wp_get_archives', $cache, 'general' );
 856          } else {
 857              $arcresults = $cache[ $key ];
 858          }
 859          if ( $arcresults ) {
 860              $afterafter = $after;
 861              foreach ( (array) $arcresults as $arcresult ) {
 862                  $url    = get_day_link($arcresult->year, $arcresult->month, $arcresult->dayofmonth);
 863                  $date = sprintf('%1$d-%2$02d-%3$02d 00:00:00', $arcresult->year, $arcresult->month, $arcresult->dayofmonth);
 864                  $text = mysql2date($archive_day_date_format, $date);
 865                  if ($show_post_count)
 866                      $after = '&nbsp;('.$arcresult->posts.')'.$afterafter;
 867                  $output .= get_archives_link($url, $text, $format, $before, $after);
 868              }
 869          }
 870      } elseif ( 'weekly' == $type ) {
 871          $start_of_week = get_option('start_of_week');
 872          $query = "SELECT DISTINCT WEEK(post_date, $start_of_week) AS `week`, YEAR(post_date) AS yr, DATE_FORMAT(post_date, '%Y-%m-%d') AS yyyymmdd, count(ID) as posts FROM $wpdb->posts $join $where GROUP BY WEEK(post_date, $start_of_week), YEAR(post_date) ORDER BY post_date DESC $limit";
 873          $key = md5($query);
 874          $cache = wp_cache_get( 'wp_get_archives' , 'general');
 875          if ( !isset( $cache[ $key ] ) ) {
 876              $arcresults = $wpdb->get_results($query);
 877              $cache[ $key ] = $arcresults;
 878              wp_cache_add( 'wp_get_archives', $cache, 'general' );
 879          } else {
 880              $arcresults = $cache[ $key ];
 881          }
 882          $arc_w_last = '';
 883          $afterafter = $after;
 884          if ( $arcresults ) {
 885                  foreach ( (array) $arcresults as $arcresult ) {
 886                      if ( $arcresult->week != $arc_w_last ) {
 887                          $arc_year = $arcresult->yr;
 888                          $arc_w_last = $arcresult->week;
 889                          $arc_week = get_weekstartend($arcresult->yyyymmdd, get_option('start_of_week'));
 890                          $arc_week_start = date_i18n($archive_week_start_date_format, $arc_week['start']);
 891                          $arc_week_end = date_i18n($archive_week_end_date_format, $arc_week['end']);
 892                          $url  = sprintf('%1$s/%2$s%3$sm%4$s%5$s%6$sw%7$s%8$d', get_option('home'), '', '?', '=', $arc_year, '&amp;', '=', $arcresult->week);
 893                          $text = $arc_week_start . $archive_week_separator . $arc_week_end;
 894                          if ($show_post_count)
 895                              $after = '&nbsp;('.$arcresult->posts.')'.$afterafter;
 896                          $output .= get_archives_link($url, $text, $format, $before, $after);
 897                      }
 898                  }
 899          }
 900      } elseif ( ( 'postbypost' == $type ) || ('alpha' == $type) ) {
 901          $orderby = ('alpha' == $type) ? "post_title ASC " : "post_date DESC ";
 902          $query = "SELECT * FROM $wpdb->posts $join $where ORDER BY $orderby $limit";
 903          $key = md5($query);
 904          $cache = wp_cache_get( 'wp_get_archives' , 'general');
 905          if ( !isset( $cache[ $key ] ) ) {
 906              $arcresults = $wpdb->get_results($query);
 907              $cache[ $key ] = $arcresults;
 908              wp_cache_add( 'wp_get_archives', $cache, 'general' );
 909          } else {
 910              $arcresults = $cache[ $key ];
 911          }
 912          if ( $arcresults ) {
 913              foreach ( (array) $arcresults as $arcresult ) {
 914                  if ( $arcresult->post_date != '0000-00-00 00:00:00' ) {
 915                      $url  = get_permalink($arcresult);
 916                      $arc_title = $arcresult->post_title;
 917                      if ( $arc_title )
 918                          $text = strip_tags(apply_filters('the_title', $arc_title));
 919                      else
 920                          $text = $arcresult->ID;
 921                      $output .= get_archives_link($url, $text, $format, $before, $after);
 922                  }
 923              }
 924          }
 925      }
 926      if ( $echo )
 927          echo $output;
 928      else
 929          return $output;
 930  }
 931  
 932  /**
 933   * Get number of days since the start of the week.
 934   *
 935   * @since 1.5.0
 936   * @usedby get_calendar()
 937   *
 938   * @param int $num Number of day.
 939   * @return int Days since the start of the week.
 940   */
 941  function calendar_week_mod($num) {
 942      $base = 7;
 943      return ($num - $base*floor($num/$base));
 944  }
 945  
 946  /**
 947   * Display calendar with days that have posts as links.
 948   *
 949   * The calendar is cached, which will be retrieved, if it exists. If there are
 950   * no posts for the month, then it will not be displayed.
 951   *
 952   * @since 1.0.0
 953   *
 954   * @param bool $initial Optional, default is true. Use initial calendar names.
 955   */
 956  function get_calendar($initial = true) {
 957      global $wpdb, $m, $monthnum, $year, $wp_locale, $posts;
 958  
 959      $cache = array();
 960      $key = md5( $m . $monthnum . $year );
 961      if ( $cache = wp_cache_get( 'get_calendar', 'calendar' ) ) {
 962          if ( is_array($cache) && isset( $cache[ $key ] ) ) {
 963              echo $cache[ $key ];
 964              return;
 965          }
 966      }
 967  
 968      if ( !is_array($cache) )
 969          $cache = array();
 970  
 971      // Quick check. If we have no posts at all, abort!
 972      if ( !$posts ) {
 973          $gotsome = $wpdb->get_var("SELECT 1 as test FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1");
 974          if ( !$gotsome ) {
 975              $cache[ $key ] = '';
 976              wp_cache_set( 'get_calendar', $cache, 'calendar' );
 977              return;
 978          }
 979      }
 980  
 981      ob_start();
 982      if ( isset($_GET['w']) )
 983          $w = ''.intval($_GET['w']);
 984  
 985      // week_begins = 0 stands for Sunday
 986      $week_begins = intval(get_option('start_of_week'));
 987  
 988      // Let's figure out when we are
 989      if ( !empty($monthnum) && !empty($year) ) {
 990          $thismonth = ''.zeroise(intval($monthnum), 2);
 991          $thisyear = ''.intval($year);
 992      } elseif ( !empty($w) ) {
 993          // We need to get the month from MySQL
 994          $thisyear = ''.intval(substr($m, 0, 4));
 995          $d = (($w - 1) * 7) + 6; //it seems MySQL's weeks disagree with PHP's
 996          $thismonth = $wpdb->get_var("SELECT DATE_FORMAT((DATE_ADD('$thisyear}0101', INTERVAL $d DAY) ), '%m')");
 997      } elseif ( !empty($m) ) {
 998          $thisyear = ''.intval(substr($m, 0, 4));
 999          if ( strlen($m) < 6 )
1000                  $thismonth = '01';
1001          else
1002                  $thismonth = ''.zeroise(intval(substr($m, 4, 2)), 2);
1003      } else {
1004          $thisyear = gmdate('Y', current_time('timestamp'));
1005          $thismonth = gmdate('m', current_time('timestamp'));
1006      }
1007  
1008      $unixmonth = mktime(0, 0 , 0, $thismonth, 1, $thisyear);
1009  
1010      // Get the next and previous month and year with at least one post
1011      $previous = $wpdb->get_row("SELECT DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year
1012          FROM $wpdb->posts
1013          WHERE post_date < '$thisyear-$thismonth-01'
1014          AND post_type = 'post' AND post_status = 'publish'
1015              ORDER BY post_date DESC
1016              LIMIT 1");
1017      $next = $wpdb->get_row("SELECT    DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year
1018          FROM $wpdb->posts
1019          WHERE post_date >    '$thisyear-$thismonth-01'
1020          AND MONTH( post_date ) != MONTH( '$thisyear-$thismonth-01' )
1021          AND post_type = 'post' AND post_status = 'publish'
1022              ORDER    BY post_date ASC
1023              LIMIT 1");
1024  
1025      /* translators: Calendar caption: 1: month name, 2: 4-digit year */
1026      $calendar_caption = _x('%1$s %2$s', 'calendar caption');
1027      echo '<table id="wp-calendar" summary="' . esc_attr__('Calendar') . '">
1028      <caption>' . sprintf($calendar_caption, $wp_locale->get_month($thismonth), date('Y', $unixmonth)) . '</caption>
1029      <thead>
1030      <tr>';
1031  
1032      $myweek = array();
1033  
1034      for ( $wdcount=0; $wdcount<=6; $wdcount++ ) {
1035          $myweek[] = $wp_locale->get_weekday(($wdcount+$week_begins)%7);
1036      }
1037  
1038      foreach ( $myweek as $wd ) {
1039          $day_name = (true == $initial) ? $wp_locale->get_weekday_initial($wd) : $wp_locale->get_weekday_abbrev($wd);
1040          $wd = esc_attr($wd);
1041          echo "\n\t\t<th abbr=\"$wd\" scope=\"col\" title=\"$wd\">$day_name</th>";
1042      }
1043  
1044      echo '
1045      </tr>
1046      </thead>
1047  
1048      <tfoot>
1049      <tr>';
1050  
1051      if ( $previous ) {
1052          echo "\n\t\t".'<td abbr="' . $wp_locale->get_month($previous->month) . '" colspan="3" id="prev"><a href="' .
1053          get_month_link($previous->year, $previous->month) . '" title="' . sprintf(__('View posts for %1$s %2$s'), $wp_locale->get_month($previous->month),
1054              date('Y', mktime(0, 0 , 0, $previous->month, 1, $previous->year))) . '">&laquo; ' . $wp_locale->get_month_abbrev($wp_locale->get_month($previous->month)) . '</a></td>';
1055      } else {
1056          echo "\n\t\t".'<td colspan="3" id="prev" class="pad">&nbsp;</td>';
1057      }
1058  
1059      echo "\n\t\t".'<td class="pad">&nbsp;</td>';
1060  
1061      if ( $next ) {
1062          echo "\n\t\t".'<td abbr="' . $wp_locale->get_month($next->month) . '" colspan="3" id="next"><a href="' .
1063          get_month_link($next->year, $next->month) . '" title="' . esc_attr( sprintf(__('View posts for %1$s %2$s'), $wp_locale->get_month($next->month) ,
1064              date('Y', mktime(0, 0 , 0, $next->month, 1, $next->year))) ) . '">' . $wp_locale->get_month_abbrev($wp_locale->get_month($next->month)) . ' &raquo;</a></td>';
1065      } else {
1066          echo "\n\t\t".'<td colspan="3" id="next" class="pad">&nbsp;</td>';
1067      }
1068  
1069      echo '
1070      </tr>
1071      </tfoot>
1072  
1073      <tbody>
1074      <tr>';
1075  
1076      // Get days with posts
1077      $dayswithposts = $wpdb->get_results("SELECT DISTINCT DAYOFMONTH(post_date)
1078          FROM $wpdb->posts WHERE MONTH(post_date) = '$thismonth'
1079          AND YEAR(post_date) = '$thisyear'
1080          AND post_type = 'post' AND post_status = 'publish'
1081          AND post_date < '" . current_time('mysql') . '\'', ARRAY_N);
1082      if ( $dayswithposts ) {
1083          foreach ( (array) $dayswithposts as $daywith ) {
1084              $daywithpost[] = $daywith[0];
1085          }
1086      } else {
1087          $daywithpost = array();
1088      }
1089  
1090      if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false || strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'camino') !== false || strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'safari') !== false)
1091          $ak_title_separator = "\n";
1092      else
1093          $ak_title_separator = ', ';
1094  
1095      $ak_titles_for_day = array();
1096      $ak_post_titles = $wpdb->get_results("SELECT post_title, DAYOFMONTH(post_date) as dom "
1097          ."FROM $wpdb->posts "
1098          ."WHERE YEAR(post_date) = '$thisyear' "
1099          ."AND MONTH(post_date) = '$thismonth' "
1100          ."AND post_date < '".current_time('mysql')."' "
1101          ."AND post_type = 'post' AND post_status = 'publish'"
1102      );
1103      if ( $ak_post_titles ) {
1104          foreach ( (array) $ak_post_titles as $ak_post_title ) {
1105  
1106                  $post_title = esc_attr( apply_filters( 'the_title', $ak_post_title->post_title ) );
1107  
1108                  if ( empty($ak_titles_for_day['day_'.$ak_post_title->dom]) )
1109                      $ak_titles_for_day['day_'.$ak_post_title->dom] = '';
1110                  if ( empty($ak_titles_for_day["$ak_post_title->dom"]) ) // first one
1111                      $ak_titles_for_day["$ak_post_title->dom"] = $post_title;
1112                  else
1113                      $ak_titles_for_day["$ak_post_title->dom"] .= $ak_title_separator . $post_title;
1114          }
1115      }
1116  
1117  
1118      // See how much we should pad in the beginning
1119      $pad = calendar_week_mod(date('w', $unixmonth)-$week_begins);
1120      if ( 0 != $pad )
1121          echo "\n\t\t".'<td colspan="'. esc_attr($pad) .'" class="pad">&nbsp;</td>';
1122  
1123      $daysinmonth = intval(date('t', $unixmonth));
1124      for ( $day = 1; $day <= $daysinmonth; ++$day ) {
1125          if ( isset($newrow) && $newrow )
1126              echo "\n\t</tr>\n\t<tr>\n\t\t";
1127          $newrow = false;
1128  
1129          if ( $day == gmdate('j', (time() + (get_option('gmt_offset') * 3600))) && $thismonth == gmdate('m', time()+(get_option('gmt_offset') * 3600)) && $thisyear == gmdate('Y', time()+(get_option('gmt_offset') * 3600)) )
1130              echo '<td id="today">';
1131          else
1132              echo '<td>';
1133  
1134          if ( in_array($day, $daywithpost) ) // any posts today?
1135                  echo '<a href="' . get_day_link($thisyear, $thismonth, $day) . "\" title=\"" . esc_attr($ak_titles_for_day[$day]) . "\">$day</a>";
1136          else
1137              echo $day;
1138          echo '</td>';
1139  
1140          if ( 6 == calendar_week_mod(date('w', mktime(0, 0 , 0, $thismonth, $day, $thisyear))-$week_begins) )
1141              $newrow = true;
1142      }
1143  
1144      $pad = 7 - calendar_week_mod(date('w', mktime(0, 0 , 0, $thismonth, $day, $thisyear))-$week_begins);
1145      if ( $pad != 0 && $pad != 7 )
1146          echo "\n\t\t".'<td class="pad" colspan="'. esc_attr($pad) .'">&nbsp;</td>';
1147  
1148      echo "\n\t</tr>\n\t</tbody>\n\t</table>";
1149  
1150      $output = ob_get_contents();
1151      ob_end_clean();
1152      echo $output;
1153      $cache[ $key ] = $output;
1154      wp_cache_set( 'get_calendar', $cache, 'calendar' );
1155  }
1156  
1157  /**
1158   * Purge the cached results of get_calendar.
1159   *
1160   * @see get_calendar
1161   * @since 2.1.0
1162   */
1163  function delete_get_calendar_cache() {
1164      wp_cache_delete( 'get_calendar', 'calendar' );
1165  }
1166  add_action( 'save_post', 'delete_get_calendar_cache' );
1167  add_action( 'delete_post', 'delete_get_calendar_cache' );
1168  add_action( 'update_option_start_of_week', 'delete_get_calendar_cache' );
1169  add_action( 'update_option_gmt_offset', 'delete_get_calendar_cache' );
1170  
1171  /**
1172   * Display all of the allowed tags in HTML format with attributes.
1173   *
1174   * This is useful for displaying in the comment area, which elements and
1175   * attributes are supported. As well as any plugins which want to display it.
1176   *
1177   * @since 1.0.1
1178   * @uses $allowedtags
1179   *
1180   * @return string HTML allowed tags entity encoded.
1181   */
1182  function allowed_tags() {
1183      global $allowedtags;
1184      $allowed = '';
1185      foreach ( (array) $allowedtags as $tag => $attributes ) {
1186          $allowed .= '<'.$tag;
1187          if ( 0 < count($attributes) ) {
1188              foreach ( $attributes as $attribute => $limits ) {
1189                  $allowed .= ' '.$attribute.'=""';
1190              }
1191          }
1192          $allowed .= '> ';
1193      }
1194      return htmlentities($allowed);
1195  }
1196  
1197  /***** Date/Time tags *****/
1198  
1199  /**
1200   * Outputs the date in iso8601 format for xml files.
1201   *
1202   * @since 1.0.0
1203   */
1204  function the_date_xml() {
1205      global $post;
1206      echo mysql2date('Y-m-d', $post->post_date, false);
1207  }
1208  
1209  /**
1210   * Display or Retrieve the date the post was written.
1211   *
1212   * Will only output the date if the current post's date is different from the
1213   * previous one output.
1214   *
1215   * @since 0.71
1216   *
1217   * @param string $d Optional. PHP date format defaults to the date_format option if not specified.
1218   * @param string $before Optional. Output before the date.
1219   * @param string $after Optional. Output after the date.
1220   * @param bool $echo Optional, default is display. Whether to echo the date or return it.
1221   * @return string|null Null if displaying, string if retrieving.
1222   */
1223  function the_date($d='', $before='', $after='', $echo = true) {
1224      global $post, $day, $previousday;
1225      $the_date = '';
1226      if ( $day != $previousday ) {
1227          $the_date .= $before;
1228          if ( $d=='' )
1229              $the_date .= mysql2date(get_option('date_format'), $post->post_date);
1230          else
1231              $the_date .= mysql2date($d, $post->post_date);
1232          $the_date .= $after;
1233          $previousday = $day;
1234  
1235      $the_date = apply_filters('the_date', $the_date, $d, $before, $after);
1236      if ( $echo )
1237          echo $the_date;
1238      else
1239          return $the_date;
1240      }
1241  }
1242  
1243  /**
1244   * Display the date on which the post was last modified.
1245   *
1246   * @since 2.1.0
1247   *
1248   * @param string $d Optional. PHP date format.
1249   * @return string
1250   */
1251  function the_modified_date($d = '') {
1252      echo apply_filters('the_modified_date', get_the_modified_date($d), $d);
1253  }
1254  
1255  /**
1256   * Retrieve the date on which the post was last modified.
1257   *
1258   * @since 2.1.0
1259   *
1260   * @param string $d Optional. PHP date format. Defaults to the "date_format" option
1261   * @return string
1262   */
1263  function get_the_modified_date($d = '') {
1264      if ( '' == $d )
1265          $the_time = get_post_modified_time(get_option('date_format'), null, null, true);
1266      else
1267          $the_time = get_post_modified_time($d, null, null, true);
1268      return apply_filters('get_the_modified_date', $the_time, $d);
1269  }
1270  
1271  /**
1272   * Display the time at which the post was written.
1273   *
1274   * @since 0.71
1275   *
1276   * @param string $d Either 'G', 'U', or php date format.
1277   */
1278  function the_time( $d = '' ) {
1279      echo apply_filters('the_time', get_the_time( $d ), $d);
1280  }
1281  
1282  /**
1283   * Retrieve the time at which the post was written.
1284   *
1285   * @since 1.5.0
1286   *
1287   * @param string $d Either 'G', 'U', or php date format defaults to the value specified in the time_format option.
1288   * @param int|object $post Optional post ID or object. Default is global $post object.
1289   * @return string
1290   */
1291  function get_the_time( $d = '', $post = null ) {
1292      $post = get_post($post);
1293  
1294      if ( '' == $d )
1295          $the_time = get_post_time(get_option('time_format'), false, $post, true);
1296      else
1297          $the_time = get_post_time($d, false, $post, true);
1298      return apply_filters('get_the_time', $the_time, $d, $post);
1299  }
1300  
1301  /**
1302   * Retrieve the time at which the post was written.
1303   *
1304   * @since 2.0.0
1305   *
1306   * @param string $d Either 'G', 'U', or php date format.
1307   * @param bool $gmt Whether of not to return the gmt time.
1308   * @param int|object $post Optional post ID or object. Default is global $post object.
1309   * @param bool $translate Whether to translate the time string or not
1310   * @return string
1311   */
1312  function get_post_time( $d = 'U', $gmt = false, $post = null, $translate = false ) { // returns timestamp
1313      $post = get_post($post);
1314  
1315      if ( $gmt )
1316          $time = $post->post_date_gmt;
1317      else
1318          $time = $post->post_date;
1319  
1320      $time = mysql2date($d, $time, $translate);
1321      return apply_filters('get_post_time', $time, $d, $gmt);
1322  }
1323  
1324  /**
1325   * Display the time at which the post was last modified.
1326   *
1327   * @since 2.0.0
1328   *
1329   * @param string $d Either 'G', 'U', or php date format defaults to the value specified in the time_format option.
1330   */
1331  function the_modified_time($d = '') {
1332      echo apply_filters('the_modified_time', get_the_modified_time($d), $d);
1333  }
1334  
1335  /**
1336   * Retrieve the time at which the post was last modified.
1337   *
1338   * @since 2.0.0
1339   *
1340   * @param string $d Either 'G', 'U', or php date format defaults to the value specified in the time_format option.
1341   * @return string
1342   */
1343  function get_the_modified_time($d = '') {
1344      if ( '' == $d )
1345          $the_time = get_post_modified_time(get_option('time_format'), null, null, true);
1346      else
1347          $the_time = get_post_modified_time($d, null, null, true);
1348      return apply_filters('get_the_modified_time', $the_time, $d);
1349  }
1350  
1351  /**
1352   * Retrieve the time at which the post was last modified.
1353   *
1354   * @since 2.0.0
1355   *
1356   * @param string $d Either 'G', 'U', or php date format.
1357   * @param bool $gmt Whether of not to return the gmt time.
1358   * @param int|object $post A post_id or post object
1359   * @param bool translate Whether to translate the result or not
1360   * @return string Returns timestamp
1361   */
1362  function get_post_modified_time( $d = 'U', $gmt = false, $post = null, $translate = false ) {
1363      $post = get_post($post);
1364  
1365      if ( $gmt )
1366          $time = $post->post_modified_gmt;
1367      else
1368          $time = $post->post_modified;
1369      $time = mysql2date($d, $time, $translate);
1370  
1371      return apply_filters('get_post_modified_time', $time, $d, $gmt);
1372  }
1373  
1374  /**
1375   * Display the weekday on which the post was written.
1376   *
1377   * @since 0.71
1378   * @uses $wp_locale
1379   * @uses $post
1380   */
1381  function the_weekday() {
1382      global $wp_locale, $post;
1383      $the_weekday = $wp_locale->get_weekday(mysql2date('w', $post->post_date, false));
1384      $the_weekday = apply_filters('the_weekday', $the_weekday);
1385      echo $the_weekday;
1386  }
1387  
1388  /**
1389   * Display the weekday on which the post was written.
1390   *
1391   * Will only output the weekday if the current post's weekday is different from
1392   * the previous one output.
1393   *
1394   * @since 0.71
1395   *
1396   * @param string $before output before the date.
1397   * @param string $after output after the date.
1398    */
1399  function the_weekday_date($before='',$after='') {
1400      global $wp_locale, $post, $day, $previousweekday;
1401      $the_weekday_date = '';
1402      if ( $day != $previousweekday ) {
1403          $the_weekday_date .= $before;
1404          $the_weekday_date .= $wp_locale->get_weekday(mysql2date('w', $post->post_date, false));
1405          $the_weekday_date .= $after;
1406          $previousweekday = $day;
1407      }
1408      $the_weekday_date = apply_filters('the_weekday_date', $the_weekday_date, $before, $after);
1409      echo $the_weekday_date;
1410  }
1411  
1412  /**
1413   * Fire the wp_head action
1414   *
1415   * @since 1.2.0
1416   * @uses do_action() Calls 'wp_head' hook.
1417   */
1418  function wp_head() {
1419      do_action('wp_head');
1420  }
1421  
1422  /**
1423   * Fire the wp_footer action
1424   *
1425   * @since 1.5.1
1426   * @uses do_action() Calls 'wp_footer' hook.
1427   */
1428  function wp_footer() {
1429      do_action('wp_footer');
1430  }
1431  
1432  /**
1433   * Enable/disable automatic general feed link outputting.
1434   *
1435   * @since 2.8.0
1436   *
1437   * @param boolean $add Add or remove links. Defaults to true.
1438   */
1439  function automatic_feed_links( $add = true ) {
1440      if ( $add )
1441          add_action( 'wp_head', 'feed_links', 2 );
1442      else {
1443          remove_action( 'wp_head', 'feed_links', 2 );
1444          remove_action( 'wp_head', 'feed_links_extra', 3 );
1445      }
1446  }
1447  
1448  /**
1449   * Display the links to the general feeds.
1450   *
1451   * @since 2.8.0
1452   *
1453   * @param array $args Optional arguments.
1454   */
1455  function feed_links( $args ) {
1456      $defaults = array(
1457          /* translators: Separator between blog name and feed type in feed links */
1458          'separator'    => _x('&raquo;', 'feed link'),
1459          /* translators: 1: blog title, 2: separator (raquo) */
1460          'feedtitle'    => __('%1$s %2$s Feed'),
1461          /* translators: %s: blog title, 2: separator (raquo) */
1462          'comstitle'    => __('%1$s %2$s Comments Feed'),
1463      );
1464  
1465      $args = wp_parse_args( $args, $defaults );
1466  
1467      echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr(sprintf( $args['feedtitle'], get_bloginfo('name'), $args['separator'] )) . '" href="' . get_feed_link() . "\" />\n";
1468      echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . esc_attr(sprintf( $args['comstitle'], get_bloginfo('name'), $args['separator'] )) . '" href="' . get_feed_link( 'comments_' . get_default_feed() ) . "\" />\n";
1469  }
1470  
1471  /**
1472   * Display the links to the extra feeds such as category feeds.
1473   *
1474   * @since 2.8.0
1475   *
1476   * @param array $args Optional arguments.
1477   */
1478  function feed_links_extra( $args ) {
1479      $defaults = array(
1480          /* translators: Separator between blog name and feed type in feed links */
1481          'separator'   => _x('&raquo;', 'feed link'),
1482          /* translators: 1: blog name, 2: separator(raquo), 3: post title */
1483          'singletitle' => __('%1$s %2$s %3$s Comments Feed'),
1484          /* translators: 1: blog name, 2: separator(raquo), 3: category name */
1485          'cattitle'    => __('%1$s %2$s %3$s Category Feed'),
1486          /* translators: 1: blog name, 2: separator(raquo), 3: tag name */
1487          'tagtitle'    => __('%1$s %2$s %3$s Tag Feed'),
1488          /* translators: 1: blog name, 2: separator(raquo), 3: author name  */
1489          'authortitle' => __('%1$s %2$s Posts by %3$s Feed'),
1490          /* translators: 1: blog name, 2: separator(raquo), 3: search phrase */
1491          'searchtitle' => __('%1$s %2$s Search Results for &#8220;%3$s&#8221; Feed'),
1492      );
1493  
1494      $args = wp_parse_args( $args, $defaults );
1495  
1496      if ( is_single() || is_page() ) {
1497          $post = &get_post( $id = 0 );
1498  
1499          if ( comments_open() || pings_open() || $post->comment_count > 0 ) {
1500              $title = esc_attr(sprintf( $args['singletitle'], get_bloginfo('name'), $args['separator'], esc_html( get_the_title() ) ));
1501              $href = get_post_comments_feed_link( $post->ID );
1502          }
1503      } elseif ( is_category() ) {
1504          $cat_id = intval( get_query_var('cat') );
1505  
1506          $title = esc_attr(sprintf( $args['cattitle'], get_bloginfo('name'), $args['separator'], get_cat_name( $cat_id ) ));
1507          $href = get_category_feed_link( $cat_id );
1508      } elseif ( is_tag() ) {
1509          $tag_id = intval( get_query_var('tag_id') );
1510          $tag = get_tag( $tag_id );
1511  
1512          $title = esc_attr(sprintf( $args['tagtitle'], get_bloginfo('name'), $args['separator'], $tag->name ));
1513          $href = get_tag_feed_link( $tag_id );
1514      } elseif ( is_author() ) {
1515          $author_id = intval( get_query_var('author') );
1516  
1517          $title = esc_attr(sprintf( $args['authortitle'], get_bloginfo('name'), $args['separator'], get_the_author_meta( 'display_name', $author_id ) ));
1518          $href = get_author_feed_link( $author_id );
1519      } elseif ( is_search() ) {
1520          $title = esc_attr(sprintf( $args['searchtitle'], get_bloginfo('name'), $args['separator'], get_search_query() ));
1521          $href = get_search_feed_link();
1522      }
1523  
1524      if ( isset($title) && isset($href) )
1525          echo '<link rel="alternate" type="' . feed_content_type() . '" title="' . $title . '" href="' . $href . '" />' . "\n";
1526  }
1527  
1528  /**
1529   * Display the link to the Really Simple Discovery service endpoint.
1530   *
1531   * @link http://archipelago.phrasewise.com/rsd
1532   * @since 2.0.0
1533   */
1534  function rsd_link() {
1535      echo '<link rel="EditURI" type="application/rsd+xml" title="RSD" href="' . get_bloginfo('wpurl') . "/xmlrpc.php?rsd\" />\n";
1536  }
1537  
1538  /**
1539   * Display the link to the Windows Live Writer manifest file.
1540   *
1541   * @link http://msdn.microsoft.com/en-us/library/bb463265.aspx
1542   * @since 2.3.1
1543   */
1544  function wlwmanifest_link() {
1545      echo '<link rel="wlwmanifest" type="application/wlwmanifest+xml" href="'
1546          . get_bloginfo('wpurl') . '/wp-includes/wlwmanifest.xml" /> ' . "\n";
1547  }
1548  
1549  /**
1550   * Display a noindex meta tag if required by the blog configuration.
1551   *
1552   * If a blog is marked as not being public then the noindex meta tag will be
1553   * output to tell web robots not to index the page content.
1554   *
1555   * @since 2.1.0
1556   */
1557  function noindex() {
1558      // If the blog is not public, tell robots to go away.
1559      if ( '0' == get_option('blog_public') )
1560          echo "<meta name='robots' content='noindex,nofollow' />\n";
1561  }
1562  
1563  /**
1564   * Determine if TinyMCE is available.
1565   *
1566   * Checks to see if the user has deleted the tinymce files to slim down there WordPress install.
1567   *
1568   * @since 2.1.0
1569   *
1570   * @return bool Whether of not TinyMCE exists.
1571   */
1572  function rich_edit_exists() {
1573      global $wp_rich_edit_exists;
1574      if ( !isset($wp_rich_edit_exists) )
1575          $wp_rich_edit_exists = file_exists(ABSPATH . WPINC . '/js/tinymce/tiny_mce.js');
1576      return $wp_rich_edit_exists;
1577  }
1578  
1579  /**
1580   * Whether or not the user should have a WYSIWIG editor.
1581   *
1582   * Checks that the user requires a WYSIWIG editor and that the editor is
1583   * supported in the users browser.
1584   *
1585   * @since 2.0.0
1586   *
1587   * @return bool
1588   */
1589  function user_can_richedit() {
1590      global $wp_rich_edit, $pagenow;
1591  
1592      if ( !isset( $wp_rich_edit) ) {
1593          if ( get_user_option( 'rich_editing' ) == 'true' &&
1594              ( ( preg_match( '!AppleWebKit/(\d+)!', $_SERVER['HTTP_USER_AGENT'], $match ) && intval($match[1]) >= 420 ) ||
1595                  !preg_match( '!opera[ /][2-8]|konqueror|safari!i', $_SERVER['HTTP_USER_AGENT'] ) )
1596                  && 'comment.php' != $pagenow ) {
1597              $wp_rich_edit = true;
1598          } else {
1599              $wp_rich_edit = false;
1600          }
1601      }
1602  
1603      return apply_filters('user_can_richedit', $wp_rich_edit);
1604  }
1605  
1606  /**
1607   * Find out which editor should be displayed by default.
1608   *
1609   * Works out which of the two editors to display as the current editor for a
1610   * user.
1611   *
1612   * @since 2.5.0
1613   *
1614   * @return string Either 'tinymce', or 'html', or 'test'
1615   */
1616  function wp_default_editor() {
1617      $r = user_can_richedit() ? 'tinymce' : 'html'; // defaults
1618      if ( $user = wp_get_current_user() ) { // look for cookie
1619          $ed = get_user_setting('editor', 'tinymce');
1620          $r = ( in_array($ed, array('tinymce', 'html', 'test') ) ) ? $ed : $r;
1621      }
1622      return apply_filters( 'wp_default_editor', $r ); // filter
1623  }
1624  
1625  /**
1626   * Display visual editor forms: TinyMCE, or HTML, or both.
1627   *
1628   * The amount of rows the text area will have for the content has to be between
1629   * 3 and 100 or will default at 12. There is only one option used for all users,
1630   * named 'default_post_edit_rows'.
1631   *
1632   * If the user can not use the rich editor (TinyMCE), then the switch button
1633   * will not be displayed.
1634   *
1635   * @since 2.1.0
1636   *
1637   * @param string $content Textarea content.
1638   * @param string $id HTML ID attribute value.
1639   * @param string $prev_id HTML ID name for switching back and forth between visual editors.
1640   * @param bool $media_buttons Optional, default is true. Whether to display media buttons.
1641   * @param int $tab_index Optional, default is 2. Tabindex for textarea element.
1642   */
1643  function the_editor($content, $id = 'content', $prev_id = 'title', $media_buttons = true, $tab_index = 2) {
1644      $rows = get_option('default_post_edit_rows');
1645      if (($rows < 3) || ($rows > 100))
1646          $rows = 12;
1647  
1648      if ( !current_user_can( 'upload_files' ) )
1649          $media_buttons = false;
1650  
1651      $richedit =  user_can_richedit();
1652      $class = '';
1653  
1654      if ( $richedit || $media_buttons ) { ?>
1655      <div id="editor-toolbar">
1656  <?php
1657      if ( $richedit ) {
1658          $wp_default_editor = wp_default_editor(); ?>
1659          <div class="zerosize"><input accesskey="e" type="button" onclick="switchEditors.go('<?php echo $id; ?>')" /></div>
1660  <?php    if ( 'html' == $wp_default_editor ) {
1661              add_filter('the_editor_content', 'wp_htmledit_pre'); ?>
1662              <a id="edButtonHTML" class="active hide-if-no-js" onclick="switchEditors.go('<?php echo $id; ?>', 'html');"><?php _e('HTML'); ?></a>
1663              <a id="edButtonPreview" class="hide-if-no-js" onclick="switchEditors.go('<?php echo $id; ?>', 'tinymce');"><?php _e('Visual'); ?></a>
1664  <?php    } else {
1665              $class = " class='theEditor'";
1666              add_filter('the_editor_content', 'wp_richedit_pre'); ?>
1667              <a id="edButtonHTML" class="hide-if-no-js" onclick="switchEditors.go('<?php echo $id; ?>', 'html');"><?php _e('HTML'); ?></a>
1668              <a id="edButtonPreview" class="active hide-if-no-js" onclick="switchEditors.go('<?php echo $id; ?>', 'tinymce');"><?php _e('Visual'); ?></a>
1669  <?php    }
1670      }
1671  
1672      if ( $media_buttons ) { ?>
1673          <div id="media-buttons" class="hide-if-no-js">
1674  <?php    do_action( 'media_buttons' ); ?>
1675          </div>
1676  <?php
1677      } ?>
1678      </div>
1679  <?php
1680      }
1681  ?>
1682      <div id="quicktags"><?php
1683      wp_print_scripts( 'quicktags' ); ?>
1684      <script type="text/javascript">edToolbar()</script>
1685      </div>
1686  
1687  <?php
1688      $the_editor = apply_filters('the_editor', "<div id='editorcontainer'><textarea rows='$rows'$class cols='40' name='$id' tabindex='$tab_index' id='$id'>%s</textarea></div>\n");
1689      $the_editor_content = apply_filters('the_editor_content', $content);
1690  
1691      printf($the_editor, $the_editor_content);
1692  
1693  ?>
1694      <script type="text/javascript">
1695      edCanvas = document.getElementById('<?php echo $id; ?>');
1696      </script>
1697  <?php
1698  }
1699  
1700  /**
1701   * Retrieve the contents of the search WordPress query variable.
1702   *
1703   * @since 2.3.0
1704   *
1705   * @return string
1706   */
1707  function get_search_query() {
1708      return apply_filters( 'get_search_query', get_query_var( 's' ) );
1709  }
1710  
1711  /**
1712   * Display the contents of the search query variable.
1713   *
1714   * The search query string is passed through {@link esc_attr()}
1715   * to ensure that it is safe for placing in an html attribute.
1716   *
1717   * @uses attr
1718   * @since 2.1.0
1719   */
1720  function the_search_query() {
1721      echo esc_attr( apply_filters( 'the_search_query', get_search_query() ) );
1722  }
1723  
1724  /**
1725   * Display the language attributes for the html tag.
1726   *
1727   * Builds up a set of html attributes containing the text direction and language
1728   * information for the page.
1729   *
1730   * @since 2.1.0
1731   *
1732   * @param string $doctype The type of html document (xhtml|html).
1733   */
1734  function language_attributes($doctype = 'html') {
1735      $attributes = array();
1736      $output = '';
1737  
1738      if ( $dir = get_bloginfo('text_direction') )
1739          $attributes[] = "dir=\"$dir\"";
1740  
1741      if ( $lang = get_bloginfo('language') ) {
1742          if ( get_option('html_type') == 'text/html' || $doctype == 'html' )
1743              $attributes[] = "lang=\"$lang\"";
1744  
1745          if ( get_option('html_type') != 'text/html' || $doctype == 'xhtml' )
1746              $attributes[] = "xml:lang=\"$lang\"";
1747      }
1748  
1749      $output = implode(' ', $attributes);
1750      $output = apply_filters('language_attributes', $output);
1751      echo $output;
1752  }
1753  
1754  /**
1755   * Retrieve paginated link for archive post pages.
1756   *
1757   * Technically, the function can be used to create paginated link list for any
1758   * area. The 'base' argument is used to reference the url, which will be used to
1759   * create the paginated links. The 'format' argument is then used for replacing
1760   * the page number. It is however, most likely and by default, to be used on the
1761   * archive post pages.
1762   *
1763   * The 'type' argument controls format of the returned value. The default is
1764   * 'plain', which is just a string with the links separated by a newline
1765   * character. The other possible values are either 'array' or 'list'. The
1766   * 'array' value will return an array of the paginated link list to offer full
1767   * control of display. The 'list' value will place all of the paginated links in
1768   * an unordered HTML list.
1769   *
1770   * The 'total' argument is the total amount of pages and is an integer. The
1771   * 'current' argument is the current page number and is also an integer.
1772   *
1773   * An example of the 'base' argument is "http://example.com/all_posts.php%_%"
1774   * and the '%_%' is required. The '%_%' will be replaced by the contents of in
1775   * the 'format' argument. An example for the 'format' argument is "?page=%#%"
1776   * and the '%#%' is also required. The '%#%' will be replaced with the page
1777   * number.
1778   *
1779   * You can include the previous and next links in the list by setting the
1780   * 'prev_next' argument to true, which it is by default. You can set the
1781   * previous text, by using the 'prev_text' argument. You can set the next text
1782   * by setting the 'next_text' argument.
1783   *
1784   * If the 'show_all' argument is set to true, then it will show all of the pages
1785   * instead of a short list of the pages near the current page. By default, the
1786   * 'show_all' is set to false and controlled by the 'end_size' and 'mid_size'
1787   * arguments. The 'end_size' argument is how many numbers on either the start
1788   * and the end list edges, by default is 1. The 'mid_size' argument is how many
1789   * numbers to either side of current page, but not including current page.
1790   *
1791   * It is possible to add query vars to the link by using the 'add_args' argument
1792   * and see {@link add_query_arg()} for more information.
1793   *
1794   * @since 2.1.0
1795   *
1796   * @param string|array $args Optional. Override defaults.
1797   * @return array|string String of page links or array of page links.
1798   */
1799  function paginate_links( $args = '' ) {
1800      $defaults = array(
1801          'base' => '%_%', // http://example.com/all_posts.php%_% : %_% is replaced by format (below)
1802          'format' => '?page=%#%', // ?page=%#% : %#% is replaced by the page number
1803          'total' => 1,
1804          'current' => 0,
1805          'show_all' => false,
1806          'prev_next' => true,
1807          'prev_text' => __('&laquo; Previous'),
1808          'next_text' => __('Next &raquo;'),
1809          'end_size' => 1,
1810          'mid_size' => 2,
1811          'type' => 'plain',
1812          'add_args' => false, // array of query args to add
1813          'add_fragment' => ''
1814      );
1815  
1816      $args = wp_parse_args( $args, $defaults );
1817      extract($args, EXTR_SKIP);
1818  
1819      // Who knows what else people pass in $args
1820      $total = (int) $total;
1821      if ( $total < 2 )
1822          return;
1823      $current  = (int) $current;
1824      $end_size = 0  < (int) $end_size ? (int) $end_size : 1; // Out of bounds?  Make it the default.
1825      $mid_size = 0 <= (int) $mid_size ? (int) $mid_size : 2;
1826      $add_args = is_array($add_args) ? $add_args : false;
1827      $r = '';
1828      $page_links = array();
1829      $n = 0;
1830      $dots = false;
1831  
1832      if ( $prev_next && $current && 1 < $current ) :
1833          $link = str_replace('%_%', 2 == $current ? '' : $format, $base);
1834          $link = str_replace('%#%', $current - 1, $link);
1835          if ( $add_args )
1836              $link = add_query_arg( $add_args, $link );
1837          $link .= $add_fragment;
1838          $page_links[] = "<a class='prev page-numbers' href='" . esc_url($link) . "'>$prev_text</a>";
1839      endif;
1840      for ( $n = 1; $n <= $total; $n++ ) :
1841          $n_display = number_format_i18n($n);
1842          if ( $n == $current ) :
1843              $page_links[] = "<span class='page-numbers current'>$n_display</span>";
1844              $dots = true;
1845          else :
1846              if ( $show_all || ( $n <= $end_size || ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) || $n > $total - $end_size ) ) :
1847                  $link = str_replace('%_%', 1 == $n ? '' : $format, $base);
1848                  $link = str_replace('%#%', $n, $link);
1849                  if ( $add_args )
1850                      $link = add_query_arg( $add_args, $link );
1851                  $link .= $add_fragment;
1852                  $page_links[] = "<a class='page-numbers' href='" . esc_url($link) . "'>$n_display</a>";
1853                  $dots = true;
1854              elseif ( $dots && !$show_all ) :
1855                  $page_links[] = "<span class='page-numbers dots'>...</span>";
1856                  $dots = false;
1857              endif;
1858          endif;
1859      endfor;
1860      if ( $prev_next && $current && ( $current < $total || -1 == $total ) ) :
1861          $link = str_replace('%_%', $format, $base);
1862          $link = str_replace('%#%', $current + 1, $link);
1863          if ( $add_args )
1864              $link = add_query_arg( $add_args, $link );
1865          $link .= $add_fragment;
1866          $page_links[] = "<a class='next page-numbers' href='" . esc_url($link) . "'>$next_text</a>";
1867      endif;
1868      switch ( $type ) :
1869          case 'array' :
1870              return $page_links;
1871              break;
1872          case 'list' :
1873              $r .= "<ul class='page-numbers'>\n\t<li>";
1874              $r .= join("</li>\n\t<li>", $page_links);
1875              $r .= "</li>\n</ul>\n";
1876              break;
1877          default :
1878              $r = join("\n", $page_links);
1879              break;
1880      endswitch;
1881      return $r;
1882  }
1883  
1884  /**
1885   * Registers an admin colour scheme css file.
1886   *
1887   * Allows a plugin to register a new admin colour scheme. For example:
1888   * <code>
1889   * wp_admin_css_color('classic', __('Classic'), admin_url("css/colors-classic.css"),
1890   * array('#07273E', '#14568A', '#D54E21', '#2683AE'));
1891   * </code>
1892   *
1893   * @since 2.5.0
1894   *
1895   * @param string $key The unique key for this theme.
1896   * @param string $name The name of the theme.
1897   * @param string $url The url of the css file containing the colour scheme.
1898   * @param array @colors An array of CSS color definitions which are used to give the user a feel for the theme.
1899   */
1900  function wp_admin_css_color($key, $name, $url, $colors = array()) {
1901      global $_wp_admin_css_colors;
1902  
1903      if ( !isset($_wp_admin_css_colors) )
1904          $_wp_admin_css_colors = array();
1905  
1906      $_wp_admin_css_colors[$key] = (object) array('name' => $name, 'url' => $url, 'colors' => $colors);
1907  }
1908  
1909  /**
1910   * Display the URL of a WordPress admin CSS file.
1911   *
1912   * @see WP_Styles::_css_href and its style_loader_src filter.
1913   *
1914   * @since 2.3.0
1915   *
1916   * @param string $file file relative to wp-admin/ without its ".css" extension.
1917   */
1918  function wp_admin_css_uri( $file = 'wp-admin' ) {
1919      if ( defined('WP_INSTALLING') ) {
1920          $_file = "./$file.css";
1921      } else {
1922          $_file = admin_url("$file.css");
1923      }
1924      $_file = add_query_arg( 'version', get_bloginfo( 'version' ),  $_file );
1925  
1926      return apply_filters( 'wp_admin_css_uri', $_file, $file );
1927  }
1928  
1929  /**
1930   * Enqueues or directly prints a stylesheet link to the specified CSS file.
1931   *
1932   * "Intelligently" decides to enqueue or to print the CSS file. If the
1933   * 'wp_print_styles' action has *not* yet been called, the CSS file will be
1934   * enqueued. If the wp_print_styles action *has* been called, the CSS link will
1935   * be printed. Printing may be forced by passing TRUE as the $force_echo
1936   * (second) parameter.
1937   *
1938   * For backward compatibility with WordPress 2.3 calling method: If the $file
1939   * (first) parameter does not correspond to a registered CSS file, we assume
1940   * $file is a file relative to wp-admin/ without its ".css" extension. A
1941   * stylesheet link to that generated URL is printed.
1942   *
1943   * @package WordPress
1944   * @since 2.3.0
1945   * @uses $wp_styles WordPress Styles Object
1946   *
1947   * @param string $file Style handle name or file name (without ".css" extension) relative to wp-admin/
1948   * @param bool $force_echo Optional.  Force the stylesheet link to be printed rather than enqueued.
1949   */
1950  function wp_admin_css( $file = 'wp-admin', $force_echo = false ) {
1951      global $wp_styles;
1952      if ( !is_a($wp_styles, 'WP_Styles') )
1953          $wp_styles = new WP_Styles();
1954  
1955      // For backward compatibility
1956      $handle = 0 === strpos( $file, 'css/' ) ? substr( $file, 4 ) : $file;
1957  
1958      if ( $wp_styles->query( $handle ) ) {
1959          if ( $force_echo || did_action( 'wp_print_styles' ) ) // we already printed the style queue.  Print this one immediately
1960              wp_print_styles( $handle );
1961          else // Add to style queue
1962              wp_enqueue_style( $handle );
1963          return;
1964      }
1965  
1966      echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( $file ) ) . "' type='text/css' />\n", $file );
1967      if ( 'rtl' == get_bloginfo( 'text_direction' ) )
1968          echo apply_filters( 'wp_admin_css', "<link rel='stylesheet' href='" . esc_url( wp_admin_css_uri( "$file-rtl" ) ) . "' type='text/css' />\n", "$file-rtl" );
1969  }
1970  
1971  /**
1972   * Enqueues the default ThickBox js and css.
1973   *
1974   * If any of the settings need to be changed, this can be done with another js
1975   * file similar to media-upload.js and theme-preview.js. That file should
1976   * require array('thickbox') to ensure it is loaded after.
1977   *
1978   * @since 2.5.0
1979   */
1980  function add_thickbox() {
1981      wp_enqueue_script( 'thickbox' );
1982      wp_enqueue_style( 'thickbox' );
1983  }
1984  
1985  /**
1986   * Display the XHTML generator that is generated on the wp_head hook.
1987   *
1988   * @since 2.5.0
1989   */
1990  function wp_generator() {
1991      the_generator( apply_filters( 'wp_generator_type', 'xhtml' ) );
1992  }
1993  
1994  /**
1995   * Display the generator XML or Comment for RSS, ATOM, etc.
1996   *
1997   * Returns the correct generator type for the requested output format. Allows
1998   * for a plugin to filter generators overall the the_generator filter.
1999   *
2000   * @since 2.5.0
2001   * @uses apply_filters() Calls 'the_generator' hook.
2002   *
2003   * @param string $type The type of generator to output - (html|xhtml|atom|rss2|rdf|comment|export).
2004   */
2005  function the_generator( $type ) {
2006      echo apply_filters('the_generator', get_the_generator($type), $type) . "\n";
2007  }
2008  
2009  /**
2010   * Creates the generator XML or Comment for RSS, ATOM, etc.
2011   *
2012   * Returns the correct generator type for the requested output format. Allows
2013   * for a plugin to filter generators on an individual basis using the
2014   * 'get_the_generator_{$type}' filter.
2015   *
2016   * @since 2.5.0
2017   * @uses apply_filters() Calls 'get_the_generator_$type' hook.
2018   *
2019   * @param string $type The type of generator to return - (html|xhtml|atom|rss2|rdf|comment|export).
2020   * @return string The HTML content for the generator.
2021   */
2022  function get_the_generator( $type ) {
2023      switch ($type) {
2024          case 'html':
2025              $gen = '<meta name="generator" content="WordPress ' . get_bloginfo( 'version' ) . '">';
2026              break;
2027          case 'xhtml':
2028              $gen = '<meta name="generator" content="WordPress ' . get_bloginfo( 'version' ) . '" />';
2029              break;
2030          case 'atom':
2031              $gen = '<generator uri="http://wordpress.org/" version="' . get_bloginfo_rss( 'version' ) . '">WordPress</generator>';
2032              break;
2033          case 'rss2':
2034              $gen = '<generator>http://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) . '</generator>';
2035              break;
2036          case 'rdf':
2037              $gen = '<admin:generatorAgent rdf:resource="http://wordpress.org/?v=' . get_bloginfo_rss( 'version' ) . '" />';
2038              break;
2039          case 'comment':
2040              $gen = '<!-- generator="WordPress/' . get_bloginfo( 'version' ) . '" -->';
2041              break;
2042          case 'export':
2043              $gen = '<!-- generator="WordPress/' . get_bloginfo_rss('version') . '" created="'. date('Y-m-d H:i') . '"-->';
2044              break;
2045      }
2046      return apply_filters( "get_the_generator_{$type}", $gen, $type );
2047  }
2048  
2049  ?>


Generated: Fri Jan 8 00:19:48 2010 Cross-referenced by PHPXref 0.7