Parsing GET request parameters in a URL that contains another URL

Question

Here is the url:

http://localhost/test.php?id=http://google.com/?var=234&key=234

And I can't get the full $_GET['id'] or $_REQUEST['d'].

<?php
print_r($_REQUEST['id']); 
//And this is the output http://google.com/?var=234
//the **&key=234** ain't show 
?>

Answer 1

$get_url = "http://google.com/?var=234&key=234";
$my_url = "http://localhost/test.php?id=" . urlencode($get_url);

$my_url outputs:

http://localhost/test.php?id=http%3A%2F%2Fgoogle.com%2F%3Fvar%3D234%26key%3D234

So now you can get this value using $_GET['id'] or $_REQUEST['id'] (decoded).

echo urldecode($_GET["id"]);

Output

http://google.com/?var=234&key=234

To get every GET parameter:

foreach ($_GET as $key=>$value) {
  echo "$key = " . urldecode($value) . "<br />\n";
  }

$key is GET key and $value is GET value for $key.

Or you can use alternative solution to get array of GET params

$get_parameters = array();
if (isset($_SERVER['QUERY_STRING'])) {
  $pairs = explode('&', $_SERVER['QUERY_STRING']);
  foreach($pairs as $pair) {
    $part = explode('=', $pair);
    $get_parameters[$part[0]] = sizeof($part)>1 ? urldecode($part[1]) : "";
    }
  }

$get_parameters is same as url decoded $_GET.

Answer 2

While creating url encode them with urlencode

$val=urlencode('http://google.com/?var=234&key=234')

<a href="http://localhost/test.php?id=<?php echo $val ?>">Click here</a>

and while fetching decode it wiht urldecode