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);