PHP
You can find here a list of PHP scripts, that I released under a GPL license. It is mostly about CMS solutions, domain in which I am quite versed.
PHP classes
You can find here a PHP class to upload files, and manipulate images... I use it in many applications.
Content Management Systems
I put up a page introducing my content management framework: The CMF. There will be more to come soon.
And here a page on my first CMS project myWebEngine
Miscellaneous
I released Web Tools a (long) while ago. It is a tool aimed to simplify web hosting managment. Have a closer look here.
Maybe you are interested on how to install typo3 on a server hosted by OVH? It's there.