How to GET URL parameter in PHP

Question

I'm trying to pass a URL as a url parameter in php but when I try to get this parameter I get nothing

I'm using the following url form:

http://localhost/dispatch.php?link=www.google.com

I'm trying to get it through:

$_GET['link'];

But nothing returned. What is the problem?

Answer 1

Hello @kartik,

$_GET is not a function or language construct—it's just a variable (an array). Try:

<?php
echo $_GET['link'];

In particular, it's a superglobal: a built-in variable that's populated by PHP and is available in all scopes.

Since the variable might not exist, you could (and should) ensure your code does not trigger notices with:

<?php
if (isset($_GET['link'])) {
    echo $_GET['link'];
} else {
    // Fallback behaviour goes here
}

Hope it helps!!

Thank You!!