Enable PEAR and PECL on Yosemite

PEAR and PECL installation

// By default PEAR is not installed on Yosemite, but it comes with installation phar file
$ cd /usr/lib/php
$ sudo php install-pear-nozlib.phar

// If you don't have php.ini file use default one provided
$ sudo cp /etc/php.ini.default /etc/php.ini

// edit php.ini with your editor of choice and add two following lines
// make sure to douple check your extension path, it maybe different
include_path = ".:/usr/lib/php/pear"
extension_dir = "/usr/lib/php/extensions/no-debug-non-zts-20121212"

// update channels
sudo pear channel-update pear.php.net
sudo pecl channel-update pecl.php.net
sudo pear upgrade-all