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   1  <?php
   2  // $Id: cache-install.inc,v 1.2 2007/08/07 08:39:35 goba Exp $
   3  
   4  /**
   5   * A stub cache implementation to be used during the installation
   6   * process when database access is not yet available. Because Drupal's
   7   * caching system never requires that cached data be present, these
   8   * stub functions can short-circuit the process and sidestep the
   9   * need for any persistent storage. Obviously, using this cache
  10   * implementation during normal operations would have a negative impact
  11   * on performance.
  12   */
  13  
  14  function cache_get($key, $table = 'cache') {
  15    return FALSE;
  16  }
  17  
  18  function cache_set($cid, $data, $table = 'cache', $expire = CACHE_PERMANENT, $headers = NULL) {
  19    return;
  20  }
  21  
  22  function cache_clear_all($cid = NULL, $table = NULL, $wildcard = FALSE) {
  23    return;
  24  }