php 二维数组排序

二维数组排序，利用array_multisort函数实现

    /** * @brief 二维数组排序 * @param $data * @param $field * @param $direction * @return mixed */
    private function arraySort($data, $field, $direction) {
        $sort = array(
            'direction' => $direction,   //排序顺序标志 SORT_DESC 降序；SORT_ASC 升序
            'field'     => $field,       //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;
    }