How can you change the value of a cookie in PHP?

To change the value of a cookie in PHP, you can simply set a new value for the cookie using the setcookie() function with the same cookie name. This will overwrite the existing cookie with the new value. Make sure to set the same parameters (such as expiration time and path) as the original cookie to ensure it is updated correctly.

// Set a new value for the cookie
setcookie("cookie_name", "new_cookie_value", time() + 3600, "/");