Sort for multi-dimensional array

function aasort(&$array, $key){
			$sorter = array();
			$ret = array();
			reset($array);
			foreach($array as $ii =>$va){
				$sorter[$ii]=$va[$key];
			}
			asort($sorter);
			foreach($sorter as $ii=>$va){
				$ret[$ii]=$array[$ii];
			}
			$array=$ret;
}

Keeps the multidimensional array intact, php. http://stackoverflow.com/questions/2699086/sort-multi-dimensional-array-by-value/2699159#2699159