What are the best practices for handling user identification in PHP when dealing with proxies?

When dealing with proxies in PHP, it's important to handle user identification securely to prevent unauthorized access. One way to do this is by utilizing session tokens and verifying the user's identity with each request. Additionally, using HTTPS for secure communication can help protect sensitive information from being intercepted by malicious actors. 

// Start a secure session
session_start();

// Generate a unique session token
$token = bin2hex(random_bytes(16));

// Store the token in the session
$_SESSION['token'] = $token;

// Validate the token with each request
if (!isset($_SESSION['token']) || $_SESSION['token'] !== $token) {
    // Invalid token, handle accordingly (e.g. log out user)
}

Keywords

user identification PHP proxies security authentication

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