Fatal error: Uncaught mysqli_sql_exception: No such file or directory in /users/2016/i1658054/public_html/2019/webprog/ch13/exam13-01.php:4 Stack trace: #0 /users/2016/i1658054/public_html/2019/webprog/ch13/exam13-01.php(4): mysqli_connect() #1 {main} thrown in /users/2016/i1658054/public_html/2019/webprog/ch13/exam13-01.php on line 4