README

❗ This is a forked version of EasyRdf.

Status of this fork

Because EasyRdf got revived to some extend and I can help out as a maintainer there, I decided to archive this repository for now.

Why this fork?

EasyRdf was in maintenance mode since 2017 (link) and not actively maintained since. There are 6+ pull requests pending with fixes and new features. Its sad to see another RDF PHP project die slowly, so i decided to clean house and give the code a new home (further info).

What can you expect as a user?

This fork aims to be a drop-in replacement for the easyrdf/easyrdf package, which means, you can use it without changing your code. But you should still read the notes of the latest release, to make sure nothing unexpected happens after an update.

What can you expect as an EasyRdf developer?

This repository is set up in a way to lower the maintenance overhead in comparison to the original version. For instance, by adding coveralls service (easier test coverage overview) and reworked tooling (reduced bash code in Makefile, keep commands simple).

Furthermore, this repository is held by an organization instead of a user. This allows more flexible maintenance, like add further maintainer or helper.

Contributions are welcome! Please read CONTRIBUTING.md for further information.

Further mainainers are possible, please send an email to @k00ni.

About

EasyRdf is a PHP library designed to make it easy to consume and produce RDF. It was designed for use in mixed teams of experienced and inexperienced RDF developers. It is written in Object Oriented PHP and has been tested extensively using PHPUnit.

After parsing EasyRdf builds up a graph of PHP objects that can then be walked around to get the data to be placed on the page. Dump methods are available to inspect what data is available during development.

Data is typically loaded into an EasyRdf\Graph object from source RDF documents, loaded from the web via HTTP. The EasyRdf\GraphStore class simplifies loading and saving data to a SPARQL 1.1 Graph Store.

SPARQL queries can be made over HTTP to a Triplestore using the EasyRdf\Sparql\Client class. SELECT and ASK queries will return an EasyRdf\Sparql\Result object and CONSTRUCT and DESCRIBE queries will return an EasyRdf\Graph object.

Example

$foaf = new \EasyRdf\Graph("http://njh.me/foaf.rdf");
$foaf->load();
$me = $foaf->primaryTopic();
echo "My name is: ".$me->get('foaf:name')."\n";

Downloads

The latest stable version of EasyRdf can be downloaded from the EasyRdf website.

Requirements

PHP 7.0 or higher

Features

API documentation written in phpdoc
Extensive unit tests written using phpunit
Built-in parsers and serialisers: RDF/JSON, N-Triples, RDF/XML, Turtle
Optional parsing support for: ARC2, rapper
Optional support for Zend\Http\Client
No required external dependancies upon other libraries (PEAR, Zend, etc...)
Complies with Zend Framework coding style.
Type mapper - resources of type foaf:Person can be mapped into PHP object of class Foaf_Person
Support for visualisation of graphs using GraphViz
Comes with a number of examples

More Examples

basic.php - Basic "Hello World" type example
basic_sparql.php - Example of making a SPARQL SELECT query
converter.php - Convert RDF from one format to another
dump.php - Display the contents of a graph
foafinfo.php - Display the basic information in a FOAF document
foafmaker.php - Construct a FOAF document with a choice of serialisations
graph_direct.php - Example of using EasyRdf\Graph directly without EasyRdf\Resource
graphstore.php - Store and retrieve data from a SPARQL 1.1 Graph Store
graphviz.php - GraphViz rendering example
html_tag_helpers.php - Rails Style html tag helpers to make the EasyRdf examples simpler
httpget.php - No RDF, just test EasyRdf\Http\Client
serialise.php - Basic serialisation example
sparql_queryform.php - Form to submit SPARQL queries and display the result
uk_postcode.php - Example of resolving UK postcodes using uk-postcodes.com
zend_framework.php - Example of using Zend\Http\Client with EasyRdf
artistinfo.php - Example of mapping an RDF class type to a PHP Class
basic.php - Basic "Hello World" type example
basic_sparql.php - Example of making a SPARQL SELECT query
converter.php - Convert RDF from one format to another
dump.php - Display the contents of a graph
foafinfo.php - Display the basic information in a FOAF document
foafmaker.php - Construct a FOAF document with a choice of serialisations
graph_direct.php - Example of using EasyRdf\Graph directly without EasyRdf\Resource
graphstore.php - Store and retrieve data from a SPARQL 1.1 Graph Store
graphviz.php - GraphViz rendering example
html_tag_helpers.php - Rails Style html tag helpers to make the EasyRdf examples simpler
httpget.php - No RDF, just test EasyRdf\Http\Client
open_graph_protocol.php - Extract Open Graph Protocol metadata from a webpage
serialise.php - Basic serialisation example
sparql_queryform.php - Form to submit SPARQL queries and display the result
uk_postcode.php - Example of resolving UK postcodes using uk-postcodes.com
wikidata_villages.php - Fetch and information about villages in Fife from Wikidata
zend_framework.php - Example of using Zend\Http\Client with EasyRdf

Running Examples

The easiest way of trying out some of the examples is to use the PHP command to run a local web server on your computer.

php -S localhost:8080 -t examples

Then open the following URL in your browser: http://localhost:8080/

Licensing

The EasyRdf library and tests are licensed under the BSD-3-Clause license. The examples are in the public domain, for more information see UNLICENSE.

sweetyrdf / easyrdf

Maintainers

Details