Thread:Project:Support desk/Problem Upgrading PHP

Hello

I'm a Debian-beginner. I have a running debian server with mediawiki 1.11 and php 5.2. Now i'd like to upgrade to MediaWiki 1.23, so i started with upgrading php to 5.4 I did this simly with apt-get install php5

But when I try to upgrade the wiki now on the browser, it still stands "MediaWiki 1.23 requires at least PHP version 5.3.2, you are using PHP 5.2.17." When I ask php -v I get 5.4 as answer, but if I look at my Wikis Version-Page, there is still 5.2.17

What can I do? What is the problem?

Thanks for your help!

Marco