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   1  <?php
   2  // +----------------------------------------------------------------------+

   3  // | PHP Version 4                                                        |

   4  // +----------------------------------------------------------------------+

   5  // | Copyright (c) 1997-2004 The PHP Group                                |

   6  // +----------------------------------------------------------------------+

   7  // | This source file is subject to version 3.0 of the PHP license,       |

   8  // | that is bundled with this package in the file LICENSE, and is        |

   9  // | available at through the world-wide-web at                           |

  10  // | http://www.php.net/license/3_0.txt.                                  |

  11  // | If you did not receive a copy of the PHP license and are unable to   |

  12  // | obtain it through the world-wide-web, please send a note to          |

  13  // | license@php.net so we can mail you a copy immediately.               |

  14  // +----------------------------------------------------------------------+

  15  // | Authors: Aidan Lister <aidan@php.net>                                |

  16  // +----------------------------------------------------------------------+

  17  //

  18  // $Id: array_uintersect_uassoc.php,v 1.12 2005/01/26 04:55:13 aidan Exp $

  19  
  20  
  21  /**

  22   * Replace array_uintersect_uassoc()

  23   *

  24   * @category    PHP

  25   * @package     PHP_Compat

  26   * @link        http://php.net/function.array_uintersect_uassoc

  27   * @author      Aidan Lister <aidan@php.net>

  28   * @version     $Revision: 1.12 $

  29   * @since       PHP 5

  30   * @require     PHP 4.0.6 (is_callable)

  31   */
  32  if (!function_exists('array_uintersect_uassoc')) {
  33      function array_uintersect_uassoc()
  34      {
  35          $args = func_get_args();
  36          if (count($args) < 4) {
  37              user_error('Wrong parameter count for array_uintersect_uassoc()',
  38                  E_USER_WARNING);
  39              return;
  40          }
  41  
  42          // Get key_compare_func

  43          $key_compare_func = array_pop($args);
  44          if (!is_callable($key_compare_func)) {
  45              if (is_array($key_compare_func)) {
  46                  $key_compare_func = $key_compare_func[0] . '::' . $key_compare_func[1];
  47              }
  48              user_error('array_uintersect_uassoc() Not a valid callback ' .
  49                  $key_compare_func, E_USER_WARNING);
  50              return;
  51          }
  52  
  53          // Get data_compare_func

  54          $data_compare_func = array_pop($args);
  55          if (!is_callable($data_compare_func)) {
  56              if (is_array($data_compare_func)) {
  57                  $data_compare_func = $data_compare_func[0] . '::' . $data_compare_func[1];
  58              }
  59              user_error('array_uintersect_uassoc() Not a valid callback '
  60              . $data_compare_func, E_USER_WARNING);
  61              return;
  62          }
  63  
  64          // Check arrays

  65          $count = count($args);
  66          for ($i = 0; $i !== $count; $i++) {
  67              if (!is_array($args[$i])) {
  68                  user_error('array_uintersect_uassoc() Argument #' .
  69                      ($i + 1) . ' is not an array', E_USER_WARNING);
  70                  return;
  71              }
  72          }
  73  
  74          // Traverse values of the first array

  75          $intersect = array ();
  76          foreach ($args[0] as $key => $value) {
  77              // Check against each array

  78              for ($i = 1; $i < $count; $i++) {
  79                  // Traverse each element in current array

  80                  foreach ($args[$i] as $ckey => $cvalue) {
  81                      // Compare key and value

  82                      if (call_user_func($key_compare_func, $key, $ckey) === 0 && 
  83                          call_user_func($data_compare_func, $value, $cvalue) === 0)
  84                      {
  85  
  86                          $intersect[$key] = $value;
  87                          continue;
  88                      }
  89                  }
  90              }
  91          }
  92  
  93          return $intersect;
  94      }
  95  }
  96  
  97  ?>