Fatal error: Uncaught Error: Call to undefined function mysql_pconnect() in D:\xampp\htdocs\IJAHUC-SI\InstallFunction.php:26 Stack trace: #0 D:\xampp\htdocs\IJAHUC-SI\Util.php(25): IsAlreadyInstalled() #1 D:\xampp\htdocs\IJAHUC-SI\index.php(22): require_once('D:\\xampp\\htdocs...') #2 {main} thrown in D:\xampp\htdocs\IJAHUC-SI\InstallFunction.php on line 26