// AJAX Chat config parameters:
$config = array();

// Database connection values:
$config['dbConnection'] = array();
// Database hostname:
$config['dbConnection']['host'] = 'localhost';
// Database username:
$config['dbConnection']['user'] = 'qachatuser';  // I renamed as my username
// Database password:
$config['dbConnection']['pass'] = 'password'; // I renamed as my username password
// Database name:
$config['dbConnection']['name'] = 'qachat'; I renamed as my database name
// Database type:
$config['dbConnection']['type'] = null;
// Database link:
$config['dbConnection']['link'] = null; // what should be here?