<?php

require_once('MDB.php');

class mdb_querytool {
};

?>
Fatal error: Cannot redeclare class mdb_querytool in E:\mangos\htdocs\MDB.php on line 5

<?php

require_once('MDB.php');

class moo extends mdb_querytool {
};

?>
Fatal error: Class 'mdb_querytool' not found in E:\mangos\htdocs\MDB.php on line 5