subval array sort function

index.php

<?php

function subval_sort($array, $subkey) {
	foreach($array as $key => $value) {
		$new_array[$key] = strtolower($value[$subkey]);
	}
	asort($new_array);
	foreach($new_array as $new_key => $new_val) {
		$result[$new_key] = $array[$new_key];
	}
	return $result;
}

?>