二维数组排序

/**
     * [ArraySort 二维数组排序]
     * @param [type] $data [二维数组]
     * @param [type] $key  [根据key排序]
     */
    public function ArraySort($data, $key){
        $sort = array(
            'direction' => 'SORT_DESC', //排序顺序标志 SORT_DESC 降序；SORT_ASC 升序
            'field'     => $key,       //排序字段
        );
        $arrSort = array();
        foreach($data AS $uniqid => $row){
            foreach($row AS $key=>$value){
                $arrSort[$key][$uniqid] = $value;
            }
        }
        if($sort['direction']){
            array_multisort($arrSort[$sort['field']], constant($sort['direction']), $data);
        }
        return $data;
    }