Why is it recommended to use $_POST instead of $_REQUEST in PHP form submissions?

Using $_POST instead of $_REQUEST in PHP form submissions is recommended for security reasons. $_POST only retrieves data sent through the HTTP POST method, which is typically used for form submissions, while $_REQUEST can also retrieve data sent through GET and COOKIE methods. By using $_POST, you can ensure that sensitive information such as passwords is not accidentally exposed through the URL. This can help prevent security vulnerabilities such as CSRF attacks. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data securely using $_POST
    $username = $_POST["username"];
    $password = $_POST["password"];
    
    // Perform necessary actions with the form data
}
?>

Keywords

$_POST $_REQUEST PHP form submissions security

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