PHP如何根据数组中的键值进行排序

 1 <?php
 2 $array = array(
 3     array(‘name‘=>‘aa‘,‘price‘=>1050),
 4     array(‘name‘=>‘bb‘,‘price‘=>4300),
 5     array(‘name‘=>‘cc‘,‘price‘=>3100),
 6     array(‘name‘=>‘dd‘,‘price‘=>4900),
 7     array(‘name‘=>‘ee‘,‘price‘=>960),
 8     array(‘name‘=>‘ff‘,‘price‘=>6299),
 9     array(‘name‘=>‘gg‘,‘price‘=>1200)
10 );
11 function arr_sort($array,$key,$order="asc"){ //asc是升序 desc是降序
12     $arr_nums=$arr=array();
13     foreach($array as $k=>$v){
14         $arr_nums[$k]=$v[$key];
15     }
16     if($order==‘asc‘){
17         asort($arr_nums);
18     }else{
19         arsort($arr_nums);
20     }
21     foreach($arr_nums as $k=>$v){
22         $arr[$k]=$array[$k];
23     }
24     print_r($arr);
25 }
26 arr_sort($array,‘price‘);