A set of useful Laravel collection macros
Browser sniffing gone too far — A useragent parser library for PHP
Slug Generator Library for PHP, based on Unicode’s CLDR data
A single-file extensible template engine
A stand-alone PHP-only library for parsing BBCode-like tags
(ml)Silkworm is an abstraction layer for PHP HTML and XML generation.
Build and Run Dynamic JSON-based Forms and Surveys Right in Your App
Cocoa framework for PHP