I've never been a big fan of PEAR, but this decision is questionable whether you love or hate PEAR.
I was quite surprised when I saw the Changelog for the release of PHP 5.1.1. Especially one specific entry immediately caught my eye: Native date class is withdrawn to prevent namespace conflict with PEAR's date package. This is quite a questionable decision, if you ask me. They have altered the programming language to fit an application written in it. I'd think that, usually, you'd have to alter the application for changes in the programming language.
05-06-2012: Forum PHP
06-06-2012: Symfony Live Paris 2012
07-06-2012: Symfony Live Paris 2012
08-06-2012: Symfony Live Paris 2012
09-06-2012: Symfony Live Paris 2012
23-06-2012: PHP TestFest NL