Skip to content

lanthaler/JsonLD

master
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Code

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
Jan 17, 2016

JsonLD Continuous integration

JsonLD is a fully conforming JSON-LD processor written in PHP. It is extensively tested and passes the official JSON-LD test suite.

There's an online playground where you can evaluate the processor's basic functionality.

Additionally to the features defined by the JSON-LD API specification, JsonLD supports framing (including value matching, deep-filtering, aggressive re-embedding, and named graphs) and an experimental object-oriented interface for JSON-LD documents.

Installation

The easiest way to install JsonLD is by requiring it with Composer.

composer require ml/json-ld

... and including Composer's autoloader to your project

require('vendor/autoload.php');

Of course, you can also download JsonLD as ZIP archive from Github.

JsonLD requires PHP 5.3 or later.

Usage

The library supports the official JSON-LD API as well as a object-oriented interface for JSON-LD documents (not fully implemented yet, see issue #15 for details).

All classes are extensively documented. Please have a look at the source code.

// Official JSON-LD API
$expanded = JsonLD::expand('document.jsonld');
$compacted = JsonLD::compact('document.jsonld', 'context.jsonld');
$framed = JsonLD::frame('document.jsonld', 'frame.jsonld');
$flattened = JsonLD::flatten('document.jsonld');
$quads = JsonLD::toRdf('document.jsonld');

// Output the expanded document (pretty print)
print JsonLD::toString($expanded, true);

// Serialize the quads as N-Quads
$nquads = new NQuads();
$serialized = $nquads->serialize($quads);
print $serialized;

// And parse them again to a JSON-LD document
$quads = $nquads->parse($serialized);
$document = JsonLD::fromRdf($quads);

print JsonLD::toString($document, true);

// Node-centric API
$doc = JsonLD::getDocument('document.jsonld');

// get the default graph
$graph = $doc->getGraph();

// get all nodes in the graph
$nodes = $graph->getNodes();

// retrieve a node by ID
$node = $graph->getNode('http://example.com/node1');

// get a property
$node->getProperty('http://example.com/vocab/name');

// add a new blank node to the graph
$newNode = $graph->createNode();

// link the new blank node to the existing node
$node->addPropertyValue('http://example.com/vocab/link', $newNode);

// even reverse properties are supported; this returns $newNode
$node->getReverseProperty('http://example.com/vocab/link');

// serialize the graph and convert it to a string
$serialized = JsonLD::toString($graph->toJsonLd());

Commercial Support

Commercial support is available on request.