多维数组按照某个字段排序

//$sort多维数组，$field字段值，$order排序方式（SORT_DESC/SORT_ASC）public function sort($sort,$field,$order){    $arrSort = array();    foreach($sort as $key1 => $value1){        foreach($value1 AS $key2=>$value2){            $arrSort[$key2][$key1] = $value2;        }    }    array_multisort($arrSort[$field], constant($order), $sort);    return $sort;}