Talk:How to become a MediaWiki hacker
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SELinux :( 
Just a note that we need to put somewhere more useful sometime: SELinux makes it difficult to install MediaWiki, and so "do you have SELinux installed?" is a useful question to ask if someone's having a very hard time installing MediaWiki. Sumanah 08:03, 20 November 2011 (UTC)
This looks like a topic that should be included in a FAQ section of Manual:Installing MediaWiki or Manual:Errors and Symptoms#Installation Errors.Actually, it's already at Manual:Errors and Symptoms#SELinux. guillom 18:39, 12 January 2012 (UTC)
Good examples of code to learn from 
I talked with Aaron Schulz today and he mentioned that he'd prefer new developers only look at good code when seeking examples to admire and copy.
- Message.php (well-structured, uses chaining)
- FileBackend (less great, but good)
We also need more testers/debuggers. There are very few test wikis (basically only translatewiki.net serves as such!) and the beta cluster is unused. See Project:Test reports. Nemo 09:46, 12 July 2012 (UTC)
On learning PHP 
Some recommendations I've heard:
One of the classics is the "Luke and Laura" book http://www.amazon.com/PHP-MySQL-Development-Luke-Welling/dp/0672317842 by Laura Thomson & WMF's Luke Welling. It's huge, pricey, but accessible and thorough. If you are a beginner, try one of the O'Reilly learning books, "Learning PHP" or "Learning PHP & MySQL". There's also zend's dev site, with some good articles: http://devzone.zend.com/
There is also a Head First book (from O'Reilly press) about PHP & MySQL.