What potential pitfalls should be considered when using PHP to handle form data and redirect it to another script?

One potential pitfall to consider when using PHP to handle form data and redirect it to another script is the risk of injection attacks. To prevent this, always sanitize and validate user input before processing or redirecting it. 

// Sanitize and validate user input before processing or redirecting it
$name = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
$email = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL);

// Redirect to another script
header("Location: another_script.php");
exit();

Keywords

XSS SQL injection form validation header injection CSRF

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