How To Get $_GET and $_POST Variables In Javascript

Retrieving the GET and POST superglobal headers in Javascript is actually very easy, although most of us are spoiled by the method used by PHP ($_GET and $_POST).

Although it takes a few more lines of code, you can mimic PHP.

How To Get $_GET in Javascript

var $_GET = {};

document.location.search.replace(/\??(?:([^=]+)=([^&]*)&?)/g, function () {
    function decode(s) {
        return decodeURIComponent(s.split("+").join(" "));
    }

    $_GET[decode(arguments[1])] = decode(arguments[2]);
});

You can now access the $_GET variables like so:

alert($_GET['some_variable']);

How To Get $_POST in Javascript

$_POST is handled a little differently (with the help of PHP). This cross-language fix allows you to store the PHP superglobal $_POST into a Javascript variable. You can also use this method for $_GET.

<script>
var $_POST = ;

document.write($_POST["test"]);
</script>

Happy coding!