PHP4 Source

[unready%20cincinnatus]

I'm looking to set up a testing environment with PHP4 in order to do some maintenance on old code. Unfortunately, I can't seem to find the PHP4 source. Can someone suggest a location for the source, or a package/environment I could look into that might help me set this up?

[richardjh]

You can still get the php4 source from the php.net website.

It is no longer supported but you can find information here
http://php.net/releases/index.php

You can download it here:
http://uk.php.net/get/php-4.4.9.tar.bz2/from/a/mirror