Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.
Semsol's ARC2 RDF library
Create your own reservation system, start with an API.
Use the Belgian railway's station in your PHP project
A tdt extension for Citadel on the Move
A fast parser for RDF serializations such as turtle, n-triples, n-quads, trig and N3
Different libraries which help you reading files
Formats PHP arrays, PHP objects and RDF triples in a lot of formats.
Reads a json stream memory efficiently.
A library to print nice pages quickly
A streaming mapper. Takes a chunk of data and a mapping file, returns RDF triples.
Did you ever try to get the current URI in PHP? This should do the trick.