Vanilla 2.1 to Mybb

[Jones H]

Can you put the following in a new file "db_test.php" in your merge folder and access it afterwards?

<?php
$link = @mysqli_connect('your_host', 'your_user', 'your_password', 'your_databasename');

if (!$link) {
    die('Connect Error: ' . mysqli_connect_error());
} else
    echo "connected";

Edit the first line to include your credentials. That should throw the error php receives.