What are the potential dangers of using $_REQUEST instead of specific arrays like $_POST, $_GET, and $_COOKIE?
Using $_REQUEST can pose security risks as it combines data from multiple sources ($_GET, $_POST, $_COOKIE) and can make your code vulnerable to injection attacks. To mitigate this risk, it's recommended to use specific arrays like $_POST, $_GET, and $_COOKIE based on the type of data you are expecting.
// Example of using $_POST instead of $_REQUEST to retrieve form data
$name = isset($_POST['name']) ? $_POST['name'] : '';
$email = isset($_POST['email']) ? $_POST['email'] : '';