PHP 二维数组某个字段进行排序

 /**

     * @param $arrUsers

     * @return mixed

     *二维数组某个字段进行排序

     */

    function quick_sort($arrUsers)

    {

        $sort = array(

              'direction' => 'SORT_DESC', //排序顺序标志 SORT_DESC 降序；SORT_ASC 升序

              'field'     => 'share_num',       //排序字段

        );

        $arrSort = array();

        foreach($arrUsers AS $k => $v){

              foreach($v AS $key=>$value){

                      $arrSort[$key][$k] = $value;

            }

        }

        if($sort['direction']){

            array_multisort($arrSort[$sort['field']], constant($sort['direction']), $arrUsers);

        }

         return $arrUsers;

    }