Question

I am building a project with installation (suck as WordPress) and the user provides database information (server, username, password and database). Now, I have to check if it can connect to the provided database. I tried this code, but it seems that it does not work (I am using Mysqli btw):

public function checkDataBaseConnection($server, $user, $pass, $db)
{
    $conn = @mysqli_connect($server, $user, $pass, $db);
    if(mysqli_connect_error())
    {
        return FALSE;
    }
    else
    {
        mysqli_close($conn);
        return TRUE;
    }
}

What other way can I use to check if the server can connect to the database?

Answer 1

One thing: Remove the @, that suppresses some php warnings.

Second thing: Try this:

public function checkDataBaseConnection($server, $user, $pass, $db)
{
    $conn = @mysqli_connect($server, $user, $pass, $db);
    if(!$conn)
    {
        return FALSE;
    }
    else
    {
        //mysqli_close($conn); why would you close the connection?
        return $conn;
    }
}