What is the difference between using setcookie and session_set_cookie_params in PHP for saving session data in a cookie?

Using setcookie allows you to set the cookie parameters directly when creating a cookie, while session_set_cookie_params allows you to set the parameters for the session cookie globally for the entire session. If you want to set specific parameters for individual cookies, you would use setcookie. If you want to set parameters for all session cookies, you would use session_set_cookie_params.

// Using setcookie to save session data in a cookie with specific parameters
setcookie("session_cookie", $session_data, time() + 3600, "/", "example.com", true, true);

// Using session_set_cookie_params to set parameters for all session cookies
session_set_cookie_params(3600, "/", "example.com", true, true);