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sweetrdf/easyrdf
================

EasyRdf is a PHP library designed to make it easy to consume and produce RDF.

1.19.0(4mo ago)261.3M—7.4%12[3 issues](https://github.com/sweetrdf/easyrdf/issues)11BSD-3-ClausePHPPHP ^8.0CI passing

Since Oct 12Pushed 4mo ago4 watchersCompare

[ Source](https://github.com/sweetrdf/easyrdf)[ Packagist](https://packagist.org/packages/sweetrdf/easyrdf)[ RSS](/packages/sweetrdf-easyrdf/feed)WikiDiscussions master Synced 1mo ago

READMEChangelog (10)Dependencies (9)Versions (44)Used By (11)

EasyRdf (Fork)
==============

[](#easyrdf-fork)

Note

**This is a fork of the [Original Easyrdf](https://github.com/easyrdf/easyrdf)** library written by [Nicholas Humfrey](https://github.com/njh). I maintain it in my spare time to keep it alive and usable on the latest PHP versions. Code is more or less maintained but not developed any further. If you wanna participate, feel free to open a pull request!

About EasyRdf
-------------

[](#about-easyrdf)

EasyRdf is a PHP library designed to make it easy to consume and produce [RDF](https://en.wikipedia.org/wiki/Resource_Description_Framework). 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
-------

[](#example)

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

Requirements
------------

[](#requirements)

- PHP 8.0 or higher
- PHP Extensions: dom, mbstring, pcre, xmlreader
- PHP Libs: libxml

Features
--------

[](#features)

- No required external dependencies upon other libraries (PEAR, etc...)
- Library runs in Linux and Windows environments
- Extensive unit tests written using PHPUnit
- Built-in parsers and serialisers: RDF/JSON, N-Triples, RDF/XML, Turtle
- Optional parsing support for: [ARC2](https://github.com/semsol/arc2/), [rapper](http://librdf.org/raptor/rapper.html)
- Optional support for `Laminas\Http\Client`
- Type mapper - resources of type `foaf:Person` can be mapped into PHP object of class `Foaf_Person`
- Support for visualisation of graphs using [GraphViz](https://www.graphviz.org/)
- Comes with a number of examples

Documentation
-------------

[](#documentation)

EasyRdf documentation is scarce at the moment, but here is what we have already. Additions/changes are welcome.

[Documentation](./docs)

List of Examples
----------------

[](#list-of-examples)

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

Contributing
------------

[](#contributing)

**Contributions are welcome!** Please read [CONTRIBUTING.md](/CONTRIBUTING.md) for further information.

For further information about extending / hack EasyRdf please read [DEVELOPER.md](/DEVELOPER.md).

Further mainainers are possible, please send an email to [@k00ni](https://github.com/k00ni).

Running Examples
----------------

[](#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:

Why this fork? (written in late 2020)
-------------------------------------

[](#why-this-fork-written-in-late-2020)

EasyRdf was in maintenance mode since 2017 ([link](https://github.com/easyrdf/easyrdf/issues/282)) and not actively maintained since. There were 6+ pull requests pending at that time 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](https://github.com/easyrdf/easyrdf/issues/320)). A few months in late 2020 EasyRdf was actively improved (me being a co-maintainer for a while), but that stopped and decay began again. It was a frustating time, lets leave it at that.

In the end I decided to abandon my old fork and start fresh with latest EasyRdf improvements in this repository.

### What can you expect as a user?

[](#what-can-you-expect-as-a-user)

This fork (v1.\*) 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?

[](#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. Test related tools were partly replaced with more lightweight solutions. Furthermore this repository is held by an organization instead of a user, which allows more flexible maintenance.

Licensing
---------

[](#licensing)

The EasyRdf library and tests are licensed under the [BSD-3-Clause](https://www.opensource.org/licenses/BSD-3-Clause) license. The examples are in the public domain, for more information see [UNLICENSE](https://unlicense.org/).

###  Health Score

63

—

FairBetter than 99% of packages

Maintenance74

Regular maintenance activity

Popularity51

Moderate usage in the ecosystem

Community35

Small or concentrated contributor base

Maturity81

Battle-tested with a long release history

 Bus Factor1

Top contributor holds 78% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~118 days

Recently: every ~24 days

Total

42

Last Release

131d ago

Major Versions

0.10.0-alpha.1 → 1.0.0-rc.12020-07-08

PHP version history (5 changes)0.7.0PHP &gt;=5.2.8

0.10.0-alpha.1PHP &gt;=5.3.0

1.0.0-rc.1PHP &gt;=7.1.0

1.4PHP ^7.1|^8.0

1.9.0PHP ^8.0

### Community

Maintainers

![](https://www.gravatar.com/avatar/f1f662e3acb95efd9208cdcd2c97437db366044aea705985251760efcbd23070?d=identicon)[zozlak](/maintainers/zozlak)

---

Top Contributors

[![njh](https://avatars.githubusercontent.com/u/38734?v=4)](https://github.com/njh "njh (1230 commits)")[![indeyets](https://avatars.githubusercontent.com/u/13445?v=4)](https://github.com/indeyets "indeyets (161 commits)")[![k00ni](https://avatars.githubusercontent.com/u/381727?v=4)](https://github.com/k00ni "k00ni (98 commits)")[![scor](https://avatars.githubusercontent.com/u/77741?v=4)](https://github.com/scor "scor (16 commits)")[![osma](https://avatars.githubusercontent.com/u/1132830?v=4)](https://github.com/osma "osma (7 commits)")[![alexpott](https://avatars.githubusercontent.com/u/769634?v=4)](https://github.com/alexpott "alexpott (6 commits)")[![hmaxs](https://avatars.githubusercontent.com/u/9107177?v=4)](https://github.com/hmaxs "hmaxs (6 commits)")[![coreation](https://avatars.githubusercontent.com/u/361244?v=4)](https://github.com/coreation "coreation (6 commits)")[![thiemowmde](https://avatars.githubusercontent.com/u/6576639?v=4)](https://github.com/thiemowmde "thiemowmde (5 commits)")[![bdecarne](https://avatars.githubusercontent.com/u/1277131?v=4)](https://github.com/bdecarne "bdecarne (5 commits)")[![ragol](https://avatars.githubusercontent.com/u/3726736?v=4)](https://github.com/ragol "ragol (4 commits)")[![Michiel-s](https://avatars.githubusercontent.com/u/7961582?v=4)](https://github.com/Michiel-s "Michiel-s (4 commits)")[![white-gecko](https://avatars.githubusercontent.com/u/1018168?v=4)](https://github.com/white-gecko "white-gecko (3 commits)")[![jonphipps](https://avatars.githubusercontent.com/u/12743?v=4)](https://github.com/jonphipps "jonphipps (3 commits)")[![jaw111](https://avatars.githubusercontent.com/u/2478333?v=4)](https://github.com/jaw111 "jaw111 (3 commits)")[![CloCkWeRX](https://avatars.githubusercontent.com/u/365751?v=4)](https://github.com/CloCkWeRX "CloCkWeRX (2 commits)")[![moustaki](https://avatars.githubusercontent.com/u/2491?v=4)](https://github.com/moustaki "moustaki (2 commits)")[![balkian](https://avatars.githubusercontent.com/u/213135?v=4)](https://github.com/balkian "balkian (2 commits)")[![zerocrates](https://avatars.githubusercontent.com/u/298975?v=4)](https://github.com/zerocrates "zerocrates (2 commits)")[![jbout](https://avatars.githubusercontent.com/u/5815304?v=4)](https://github.com/jbout "jbout (2 commits)")

---

Tags

RDFSemantic WebLinked DatasparqlrdfaTurtle

###  Code Quality

TestsPHPUnit

Static AnalysisPHPStan

Code StylePHP CS Fixer

Type Coverage Yes

### Embed Badge

![Health badge](/badges/sweetrdf-easyrdf/health.svg)

```
[![Health](https://phpackages.com/badges/sweetrdf-easyrdf/health.svg)](https://phpackages.com/packages/sweetrdf-easyrdf)
```

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