schema_util.inc in Schema 6

File

schema_util.inc

<?php

if (!function_exists('array_intersect_key')) {
  function array_intersect_key($isec, $keys) {
    $argc = func_num_args();
    if ($argc > 2) {
      for ($i = 1; !empty($isec) && $i < $argc; $i++) {
        $arr = func_get_arg($i);
        foreach (array_keys($isec) as $key) {
          if (!isset($arr[$key])) {
            unset($isec[$key]);
          }
        }
      }
      return $isec;
    }
    else {
      $res = array();
      foreach (array_keys($isec) as $key) {
        if (isset($keys[$key])) {
          $res[$key] = $isec[$key];
        }
      }
      return $res;
    }
  }
}