Warning: Undefined variable $db in D:\docs_2\new22\pages\infopublik.php on line 26

Fatal error: Uncaught Error: Call to a member function query() on null in D:\docs_2\new22\pages\infopublik.php:26 Stack trace: #0 {main} thrown in D:\docs_2\new22\pages\infopublik.php on line 26