Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /_class/class.Database.php:10 Stack trace: #0 /_class/class.Database.php(24): Database->__construct() #1 /header.php(21): Database::instance() #2 /index.php(1): include_once('/header.php') #3 {main} thrown in /_class/class.Database.php on line 10