Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\phpstudy_pro\WWW\qd-danshan.com\booking\config.php:5 Stack trace: #0 C:\phpstudy_pro\WWW\qd-danshan.com\booking\index.php(5): require_once() #1 {main} thrown in C:\phpstudy_pro\WWW\qd-danshan.com\booking\config.php on line 5