PHP is not even compatible between minor releases at times.
Sometimes they are required to change things because of security
issues and other times they improve things. In the case of PHP 5,
the object model was changed. There are some settings you can set to
have it revert to old behavior in some cases but that might not be
compatible with mediawiki. You need to check. You might be able to
map extensions to php4 for php4 content or something and get around
it. Its also possible that there are new versions of the other
webapps that do work under PHP5. It has been out awhile and I'm
successfully running e107 .7x, PhpMyAdmin and Squirrelmail on PHP5
for instance. I also have a few scripts i wrote on PHP 4.3.x that
still work in PHP5 as long as the old mysql library support is
compiled in versus the new mysqli. If you compile in the old
extensions, it usually will still work with older webapps.
On Nov 12, 2006, at 10:41 AM, Bill wrote:
I have a website using several open-source apps: WordPress,
OSCommerce, phpBB, Gallery and MediaWiki.
These are currently running under PHP 4.4.2. Updating MediaWiki to
1.8.2 requires PHP 5. Is PHP 5 backwards compatible to PHP 4. IOW,
will updating PHP from 4.4.2 to 5.1.2 likely cause problems in any
of these open source programs.
TIA,
Bill
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