Esempio n. 1
0
 public static function multiarray_keys($ar, $level = 0, $sl = 0)
 {
     if ($level && $level < $sl) {
         return;
     }
     $keys = array();
     foreach ($ar as $k => $v) {
         $keys[] = $k;
         if (is_array($ar[$k])) {
             if ($ke = XARRAY::multiarray_keys($ar[$k], $level, $sl + 1)) {
                 $keys = array_merge($keys, $ke);
             }
         }
     }
     return array_unique($keys);
 }