Group sorting Final

gistfile1.aw

/**
 * Sorts a multidimentional array in groups. The sorting sequence is provided by using an array
 * that contains the keys that should be grouped
 *
 * @param array $array
 * @param array $order
 */
function group_sort(&$array, $order)
{
	if(!$array)
	{
		return FALSE;
	}

	$all_keys = array();
	foreach(reset($array) as $key=>$row)
	{
		$all_keys[] = $key;
	}
	$all_keys = array_unique(array_merge($order, $all_keys));
	$all_keys = array_merge($all_keys, array());


	$new = array();
	foreach ($array as $row){
		foreach ($all_keys as $ord){
			$new[$ord][] = $row[$ord];
		}
	}

	$str = '';
	for ($i=0; $i<count($all_keys); $i++)
	{
		$str .= '$new[$all_keys['.$i.']],';
	}
	//Remove the last coma
	$str = substr_replace($str ,"",-1);

	eval('array_multisort('.$str.');');

	$out = array();
	foreach(reset($new) as $index=>$data)
	{
		$temp = array();
		foreach($all_keys as $key)
		{
			$temp[$key] = $new[$key][$index];
		}
		$out[] = $temp;
	}

	$array = $out;

	return TRUE;
}