What alternative methods can be used for website redirection in PHP instead of relying on the Referrer variable?

When relying on the Referrer variable for website redirection in PHP, there is a risk of it being unreliable as it can be easily manipulated or disabled by the user's browser. To ensure a more secure redirection process, alternative methods such as using session variables or checking for specific conditions within the code can be implemented. 

// Using session variables for website redirection
session_start();
if($_SESSION['redirect'] == true){
    header('Location: new_page.php');
    exit();
}

// Setting session variable for redirection
$_SESSION['redirect'] = true;

Keywords

HTTP headers header function Location header 301 redirect meta refresh

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