class.xxx problems and backward compatibility. Going back to PHP3

It's obvious that there are too many differences between php4 and 3. The class packages are quite complex bits of code, and from what I see pretty well written. I struggled for two days with trying to modify them here and there to make them php4 complient. It seems to me that this is fundamentally wrong. There is an aweful lot of code out there, far more complex than anything I can write, and if a new installation of the engine - php4 - breaks this code, and forces massive rewrites, then something needs to be addressed here. After all, what makes software 'useable' is its backward-compatability'ness. Now I know this can only go so far, but a class+code that works fine in php3 _should_ work fine in php4. It is after all an interpereted language, so structures should remain the same no? Just something to consider when making the change to php4.... I personally will wait until the new version stabilises a bit more, and try again. Meantime, php3 does an excellent job, and adopting the old adage, "If it aint broke, don't fix it" I'll leave it in place. Thanks to all thos kind souls who offered help in solving the problems. As I say, graduating to php4 should not necessitate a complete rewrite of already functional code though. cheers Robert http://www.chalmers.com.au Clipart And Books Art, Design and Graphics.