Get simple 3.3.16 support for php 8.0

[islander]

PHP 8.1
Found today (could not find whether this is already fixed):

/plugins/i18n_base/frontend.class.php on line 24:
explode(): Passing null to parameter #2 ($string) of type string is deprecated

This occurs in function getLanguages().
Fix:
$httplanguages = explode(",", @$_SERVER['HTTP_ACCEPT_LANGUAGE']??'');

(still dont know how $_SERVER['HTTP_ACCEPT_LANGUAGE'] can be null as I used a standard browser, but thats not the point here.)

Thanks Knobbles, no I dont think this has come up yet. Will add to the new repo asap.
Are you using English with this plugin or other?