连接失败：没有那个文件或目录

Question

I am working on a payroll system. Everything is working fine on localhost (xampp) but when I upload it to ionos hosting, it is loading the admin login page fine but when i enter the username & password it is giving "Connection failed: No such file or directory".

DB name: dbs4868780

and here is the code:

<?php
    $conn = new mysqli('localhost', 'root', '', 'xxxxxxxxx');

    if ($conn->connect_error) {
        die("Connection failed: " . $conn->connect_error);
    }
    
?>

Answer 1

See attached fake database example to get your data