What are the potential risks of using a simple token for session management in PHP?

Using a simple token for session management in PHP can pose a security risk if the token is easily guessable or can be easily intercepted. To mitigate this risk, it is recommended to use a more secure method of generating tokens, such as using a cryptographically secure random number generator to create unique tokens.

// Create a secure token using random_bytes()
$token = bin2hex(random_bytes(32));

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