Having a problem with a function

[JSHINER]

My code:

	function _authenticate($db, $email, $password) {
	return $db->getRow('SELECT * FROM user WHERE email = \'' . $db->escape($email) . '\' AND password = \'' . $db->escape($password) . '\'');
}

 

But when I try to login I get the error:

"Fatal error: Call to a member function getRow() on a non-object in /File.php on line 23"

 

 

Any ideas why?

[papaface]

Have you included the class?

[JSHINER]

Yes that is within "class Auth {"