As the title says Im trying to do a simple insert, but nothing actually is inserted into the table. I try to print out errors, but nothing is reported.

My users table has many more fields than these 4, but they should all default.

$query = 'INSERT INTO users (username, password, level, name) VALUES (?, ?, ?, ?)';
if($stmt = $db -> prepare($query))
{
    $stmt -> bind_param('ssis', $username, $password, $newlevel, $realname);
    $stmt -> execute();
    $stmt -> close();
    echo 'Any Errors: '.$db->error.PHP_EOL;
}

There are no errors given, but when I go to look at the table in phpmyadmin there is not a new row added. I know for sure that the types are correct (strings and integers). Is there something really wrong here or does it have something to do with the fact that I'm ignoring other columns. I have about 8 columns in the user table.