PHP not running after Upgrade Ubuntu

I have upgraded my Ubuntu server to 22.04.1. Everything else is working fine but php simply does not run! I tried to visit my website and all I get is php source code.For example, mydomain.com/info.php shows me the code:

<?phpphpinfo();?>

I restarted all apache services - nothing changed!php -v on terminal shows this (everything OK):

PHP 8.1.2 (cli) (built: Jul 21 2022 12:10:37) (NTS)Copyright (c) The PHP GroupZend Engine v4.1.2, Copyright (c) Zend Technologieswith Zend OPcache v8.1.2, Copyright (c), by Zend Technologies

Any idea?