What is the difference between using $_GET and $_REQUEST in PHP scripts?

The main difference between using $_GET and $_REQUEST in PHP scripts is that $_GET is used to retrieve data sent to the server as part of the URL, while $_REQUEST can retrieve data from both the URL and the POST method. It is generally recommended to use $_GET when specifically looking for data sent via the URL, and $_REQUEST when needing to retrieve data from both the URL and POST method.

// Example of using $_GET to retrieve data from the URL
$value = $_GET['param'];

// Example of using $_REQUEST to retrieve data from both the URL and POST method
$value = $_REQUEST['param'];