PHP 过滤二维数组和三维数组

 <?php

     $arr = [
         [1,3,5,7,9],
         [2,4,6,8,0]
     ];
     $arr2 = [
         'list' => [
             [1,3,5,7],
             [2,4,6,8],
             [3,2,9,0],
         ]
     ];
     $arr3 = [
         'list' => [
             [1,3,5,7],
             [2,4,6,8],
             [3,2,9,0]
         ]
     ];

     $res = array_map(function($arr){
         return array_filter($arr, function($v) {
             return $v !== 5;
         });
     }, $arr);

     $res2 = array_map(function($val) {
         return array_filter($val, function($v) {
             return !in_array(6, $v);
         });
     }, $arr2);

     $res3 = [];
     array_walk($arr3, function($val, $key) use(&$res3) {
         $res3[$key] = array_filter($val, function($v) {
             return !in_array(6, $v);
         });
     });

     var_dump($res2);
     var_dump($res3);