Unidentified error

I am trying to connect to a database on my localhost with Dreamweaver . When i try to create a recordset i get an unidentified error. Any ideas

I’ve got a brilliant idea.
Why don’t you paste here exact copy of this error message?

It was the record set a couple of days ago now it can’t connect to the database

<?php

function dbConnect() {
    // Conect to the MySQL Server
    if (!$connection=mysql_connect('hostname','database_user_name','database_user_password')) {
        echo 'Database Connection Failure: Sorry, we regret that the server that the database is stored on is not responding.';
        echo mysql_errno(connection) . ": " . mysql_error(connection). "\
";
        die;
    } else if ( !mysql_select_db($this->dbName,$connection ) {
        echo 'Database Connection Failure: Sorry, we regret that the server is responding but the database refuses to load.';
        echo mysql_errno(connection) . ": " . mysql_error(connection). "\
";
        die;
    } else {
        echo 'Connection established!';
    }
    mysql_set_charset('utf8',$connection);
}
?>

Have you checked that you entered the db username, password and name of the database in correctly? If you have a @ in your connection script then it should be removed as the @ operator surpresses errors.