Warning: Undefined variable $pdo in /home/alhafsh1/public_html/index.php on line 30

Fatal error: Uncaught Error: Call to a member function query() on null in /home/alhafsh1/public_html/index.php:30 Stack trace: #0 {main} thrown in /home/alhafsh1/public_html/index.php on line 30