From Joomla! Documentation
Is there any reason for not using the "Easy Install method" ? i mean
pear install PHP_CodeSniffer-1.3.0RC1
as described in Installation
--Elkuku 01:26, 19 October 2010 (UTC)
I have no idea why PSR-0, 1 and 2 are referenced on this page at all. The Platform doesn't meet PSR-0 nor PSR-1 and deliberately ignores many of the requirements in PSR-2. People submitting code to the Platform or the CMS should be using https://github.com/joomla/coding-standards.