PHP: Search element in array recursive

PHP-ELEMENT-Search.php

<?php

/**
 * Function to search for key/value in recursive mode. If last arg is true
 * it returns it's value or key. By default give true or false if key/value have been found.
 * 
 * @param  array   $array  Array to search
 * @param  string  $search What to search
 * @param  string  $mode   Mode search for value or key
 * @param  boolean $return Return value or key
 * @return boolean or string|array|object whatever
 */
function element_search(array $array, $search, $mode = 'value', $return = false) {

	foreach (new RecursiveIteratorIterator(new RecursiveArrayIterator($array)) as $key => $value) {
		if ($search === ${${"mode"}}){
			return $return ? ${${"mode"}} : true;
		}
			
	}
	
	return false;
}

?>