Warning: Undefined variable $pdo in /var/www/html/security_check.php on line 25

Fatal error: Uncaught Error: Call to a member function prepare() on null in /var/www/html/security_check.php:25 Stack trace: #0 /var/www/html/str1746a/house-rules.php(2): require_once() #1 {main} thrown in /var/www/html/security_check.php on line 25