Where can I download the mediawiki that runs on 4 and mysql 4?
Topic on User talk:MaxSem
At the same place where you can get the latest version: Download#PHP 4 has MediaWiki 1.6.12, which supports PHP 4. Remebmer though that it's pretty old - it receives security patches sometimes, but you shouldn't count on it being seriously cared about. Also, PHP 4 is out of ANY support for 1.5 years now. You've been warned.