How can PHP developers protect their websites from attacks targeting session variables transmitted via GET or POST requests?

PHP developers can protect their websites from attacks targeting session variables transmitted via GET or POST requests by validating and sanitizing user input before storing it in session variables. They can also use HTTPS to encrypt data transmitted between the client and server to prevent eavesdropping on session variables. 

// Validate and sanitize user input before storing it in session variables
$_SESSION['user_id'] = filter_var($_POST['user_id'], FILTER_SANITIZE_NUMBER_INT);

// Use HTTPS to encrypt data transmitted between client and server
// This can be enforced in the PHP configuration or through server settings

Keywords

PHP session variables security GET requests POST requests

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