sort an array of objects on the values of certain properties in mysql style

object_property_sort

// sort an array of objects on the values of certain properties
// Usage: $obj_list = object_property_sort($obj_list, "title ASC");

function object_property_sort($obj_arr, $order_by) {
	$sort = explode(" ", $order_by);
	$property = $sort[0];
	$dir = ($sort[1] == "ASC") ? SORT_ASC : SORT_DESC;
	$sort_on_arr = array();
	foreach($obj_arr as $key => $object)
		$to_sort_arr[(string)$key] = $object->$property;
	$sorted_obj_arr = $obj_arr;
	array_multisort($to_sort_arr, SORT_REGULAR, $dir, $sorted_obj_arr);
	return $sorted_obj_arr;
} 

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