http://guzzlephp.org/pear/channel.xml
http://htmlpurifier.org/channel.xml
https://nikic.github.io/pear/channel.xml
http://pear.amazonwebservices.com/channel.xml
http://pear.andrewsville.cz/channel.xml
https://pear.horde.org/channel.xml
http://pear.michelf.com/channel.xml
https://pear.phpdoc.org/channel.xml
https://pear.phing.info/channel.xml
http://pear.symfony-project.com/channel.xml
http://pear.symfony.com/channel.xml
http://pear.twig-project.org/channel.xml
