php 数组多条件排序 multi_array_compare

函数定义

function multi_array_compare($compare_param){
    return function($a, $b) use ($compare_param) {
        foreach($compare_param as $key => $orderBy){
            if($a[$key] == $b[$key]){  
                continue;  
            }
            return ((strtoupper($orderBy) == 'DESC') ? -1 : 1) * (($a[$key] < $b[$key]) ? -1 : 1);  
        }
        return 0;
    };
}

usort($result, (array('key1'=>'desc', 'key2'=>'asc', 'key3'=>'desc')multi_array_compare));