Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.
PHPUnit Testing extensions for HMTL and CSS insures valid HTML and CSS via v.Nu validator
A modern namespaced fork of the icalendar.org PHP implementation of RFC5545 iCalendar formatted files
Instant and always up to date documentation for PHP projects
PHP Object Oriented Wrapper for the Foundation CSS Framework