abstract functions

Hi, does PHP4 with the ZE2 supports abstract function like Delphi or C++? That would be very useful for class development, cause we can avoid testing if a class is abstract if an abstract class couldn't be instantiated? Syntax could be like in C++ class X { X(){} int y() = 0; } or little bit more like pascal class X { X(){} // PHP function x(); abstract; } or class X { X(){} // PHP abstract function x(); } Greetings, Jens -- L i W W W i Jens Rehsack L W W W L i W W W W i nnn gggg LiWing IT-Services L i W W W W i n n g g LLLL i W W i n n g g Friesenstraße 2 gggg 06112 Halle g g g Tel.: +49 - 3 45 - 5 17 05 91 ggg e-Mail: <rehsack@liwing.de> Fax: +49 - 3 45 - 5 17 05 92 http://www.liwing.de/