1，需求：有如下二维数组，怎么去除此数组的字段on  生成一个新数组 $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));
或者遍历时候去掉on也行
2，能达到这样的效果也可以
$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);
//值运算后面数字的或运算得到值$str，on这个字段是不能参加运算的
回复讨论(解决方案) 1、这样去掉 $arr = array( net => array(on, 11, 101, 1001), login => array(on, 10001,100001,1000001));array_walk($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、这样运算 $arr = array( net => array(on, 11, 101, 1001), login => array(on, 10001,100001,1000001));$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，灰常感谢
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