Fatal error: Uncaught Error: Call to undefined function mysqli_connect() in C:\xampp\htdocs\gimermed\php\php\user_mysql_connect.php:6 Stack trace: #0 C:\xampp\htdocs\gimermed\index.php(2): include_once() #1 {main} thrown in C:\xampp\htdocs\gimermed\php\php\user_mysql_connect.php on line 6