PHP过滤二维数组跟三维数组

 1 php 2  3     $arr = [ 4         [1,3,5,7,9], 5         [2,4,6,8,0] 6     ]; 7     $arr2 = [ 8         'list' => [ 9             [1,3,5,7],10             [2,4,6,8],11             [3,2,9,0],12         ]13     ];14     $arr3 = [15         'list' => [16             [1,3,5,7],17             [2,4,6,8],18             [3,2,9,0]19         ]20     ];21 22     $res = array_map(function($arr){23         return array_filter($arr, function($v) {24             return $v !== 5;25         });26     }, $arr);27 28     $res2 = array_map(function($val) {29         return array_filter($val, function($v) {30             return !in_array(6, $v);31         });32     }, $arr2);33 34     $res3 = [];35     array_walk($arr3, function($val, $key) use(&$res3) {36         $res3[$key] = array_filter($val, function($v) {37             return !in_array(6, $v);38         });39     });40 41     var_dump($res2);42     var_dump($res3);