PHP - 获取URL参数并重新排列数组

Question

The URL coming to the page looks something like this:

"http://localhost/testSite/id/1/friend_id/32/msg_id/5/category_id/40"

I would like to strip these variables ( id/1 , friend_id/32 , msg_id/5 etc.) and make them into an array like this:

$params = array('id' => 1, 'friend_id' => 32, 'msg_id' => 5, 'category_id' => 40)

So that I can access these values like this:

$params['id']; $params['friend_id'];

I thought I was getting somewhere with the following code, but it isn't much help.

    $keys = explode('/', $url);
    $k2 = $keys;
    $result = array();

    foreach ($keys as $k => $v) {
       $result[$v] = next($k2); 
    }
    array_pop($result);
    print_r($result);

I would get the following output from the code above:

Array
(
    [id] => 1
    [1] => friend_id
    [friend_id] => 32
    [32] => msg_id
    [msg_id] => 5
    [5] => category_id
    [category_id] => 40
)

Has anyone done this previously? How can I modify the code above to make it work properly? Or does anyone have some other ideas on how to do this?

I would really appreciate any help, Thanks!

Answer 1

If this is done by a framework there should be way to get the parameters. See the doc in that case.

Otherwise you can use simple regex to parse it. The idea is to use define a prefix ( $root in the code).

$url = 'http://localhost/testSite/id/1/friend_id/32/msg_id/5/category_id/40';
$root = 'http://localhost/testSite/';
$params =  substr($url, strlen($root));
preg_match_all("#([^/]+)/([^/]+)#", $params, $match);
$result = array_combine($match[1], $match[2]);

Answer 2

$parts = explode('/', $url);
$len = count($parts);
$result = array();
for ($i = 0; $i < $len; $i+=2) {
  $result[$parts[$i]] = $parts[$i+1];
}