note 21927 added to function.is-a

An example of a good type of class which doesnt need any values (just functions) is an object which is a string processor of some kind. This way you can do things like $sqlString .= $mySearchBox->getQueryFragment(new MyStringProcessor()); ... which avoids the need to use callbacks or to create many extended versions of MySearchBox. So, "empty" objects are both legal, and very useful. -- http://www.php.net/manual/en/function.is-a.php http://master.php.net/manage/user-notes.php?action=edit+21927 http://master.php.net/manage/user-notes.php?action=delete+21927 http://master.php.net/manage/user-notes.php?action=reject+21927