null

<?PHP

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

	$array=$ret;
}

aasort($your_array,"order");

?>