Get simple 3.3.16 support for php 8.0

[islander]

@Knobbles, @islander , ...

If you want to stay compatible with PHP < 7, I suggest you use the ternary operator instead of the null coalescing operator...

Like this?
admin/inc/cookie_functions.php
Line: 23

Code:

return setcookie($id, $value, $expire, $cookie_path, isset($cookie_domain)?$cookie_domain:'', $cookie_secure??"", $cookie_httponly);