$ cd /usr/lib/php/
$ sudo php install-pear-nozlib.phar
[PEAR] Archive_Tar    - installed: 1.3.7
[PEAR] Console_Getopt - installed: 1.3.0
[PEAR] Structures_Graph- installed: 1.0.4
[PEAR] XML_Util       - installed: 1.2.1
[PEAR] PEAR           - installed: 1.9.4
Wrote PEAR system config file at: /private/etc/pear.conf
You may want to add: /usr/lib/php/pear to your php.ini include_path

$ cd /etc
$ sudo cp php.ini.default php.ini
$ sudo chmod 777 php.ini
$ vi php.ini

$ sudo pear channel-discover pear.phpunit.de
$ sudo pear channel-discover pear.symfony-project.com
$ sudo pear channel-discover components.ez.no
$ sudo pear install pear.symfony-project.com/YAML
$ sudo pear install components.ez.no/ConsoleTools
$ sudo pear install phpunit/PHPUnit