php中怎麼去除二維數組的某個欄位？

1，需求：有如下二維數組，怎麼去除此數組的欄位"on" 產生一個新數組 $arr2
$arr = array("net" => array("on", "11", "101", "1001"),
"login" => array("on", "10001","100001","1000001"));

$arr2 = array("net" => array( "11", "101", "1001"),
"login" => array("10001","100001","1000001"));
或者遍曆時候去掉on也行
2，能達到這樣的效果也可以
$arr = array("net" => array("on","1", "2","4"),
"login" => array("on","10001","100001","10000001")
);
$str ='';
foreach ($arr as $key=>$value){
foreach ($value as $k =>$v){
$str=$str|$v;
}
}
var_dump($str);
//值運算後面數位或運算得到值$str，"on"這個欄位是不能參加運算的

回複討論(解決方案)

1、這樣去掉

$arr = array(  "net" => array("on", "11", "101", "1001"),  "login" => array("on", "10001","100001","1000001"));array_walk($arr, function(&$t) {  $t = array_diff($t, array('on'));});print_r($arr);

Array(    [net] => Array        (            [1] => 11            [2] => 101            [3] => 1001        )    [login] => Array        (            [1] => 10001            [2] => 100001            [3] => 1000001        ))

2、這樣運算

$arr = array(  "net" => array("on", "11", "101", "1001"),  "login" => array("on", "10001","100001","1000001"));$str ='';foreach ($arr as $key=>$value){    foreach ($value as $k =>$v){        if($v != 'on') $str = $str|$v;    }}var_dump($str);

string(7) "1111111"

$arr = array("net" => array("on", "11", "101", "1001"),    "login" => array("on", "10001","100001","1000001"));delon($arr);print_r($arr);function delon(&$arr){foreach($arr as $key=>&$val){foreach($val as $k=>$v){if($v=='on'){unset($val[$k]);}}}}

Array
(
[net] => Array
(
[1] => 11
[2] => 101
[3] => 1001
)

[login] => Array
(
[1] => 10001
[2] => 100001
[3] => 1000001
)

)

好的，灰常感謝

2

$arr = array("net" => array("on","1", "2","4"), "login" => array("on","10001","100001","10000001"));delon($arr);$str ='';foreach ($arr as $key=>$value){    foreach ($value as $k =>$v){        $str=$str|$v;    }}var_dump($str); function delon(&$arr){    foreach($arr as $key=>&$val){        foreach($val as $k=>$v){            if($v=='on'){                unset($val[$k]);            }        }    }}

string(8) "70001101"

