PHP -如何编辑数组的键？

Question

我有一个需要编辑数组的数组：

    Array
(
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_1\012014.user_1.txt] => TotalVisits 6788
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_1\022014.user_1.txt] => TotalVisits 11141
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_1\032014.user_1.txt] => TotalVisits 6143
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_1\042014.user_1.txt] => TotalVisits 936
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_1\052014.user_1.txt] => TotalVisits 936
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_2\012014.user_2.txt] => TotalVisits 9
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_2\022014.user_2.txt] => TotalVisits 25
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_2\032014.user_2.txt] => TotalVisits 37
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_2\042014.user_2.txt] => TotalVisits 17
    [E:\EasyPHP-cmsServer-14.1VC9\data\cms\sites\user_2\052014.user_2.txt] => TotalVisits 16
)

我想变成这样：

Array
(
    [012014_user_1] => TotalVisits 6788
    [022014_user_1] => TotalVisits 11141
    [032014_user_1] => TotalVisits 6143
    [042014_user_1] => TotalVisits 936
    [052014_user_1] => TotalVisits 936
    [012014_user_2] => TotalVisits 9
    [022014_user_2] => TotalVisits 25
    [032014_user_2] => TotalVisits 37
    [042014_user_2] => TotalVisits 17
    [052014_user_2] => TotalVisits 16
)

以下是我尝试过的：

foreach($myarray as $key => $value){
                        $exp_key = explode('\\', $key);
                        $exp_key_name = explode('.', $exp_key[6]);

                     $key = $exp_key_name[0]."_".$exp_key_name[1];

                    }

知道我代码中的错误在哪里吗？谢谢

Answer 1

简单的解决办法是：

$array[$newkey] = $array[$oldkey];
unset($array[$oldkey]);

在您的例子中，您将遍历：

$newArray = array();
foreach($array as $key => $value) {
   $newKey = end(explode("\\", $key)); //need latest php for this otherwise split end and explode

   $newArray[$newKey] = $value;
}