ubccr/ralph

A simple SPARQL client built on top of Guzzle.

0.5 2018-04-09 16:01 UTC

Requires

• php: >=7.1
• guzzlehttp/guzzle: ^6.3

Requires (Dev)

• phpstan/phpstan: ^0.9
• phpunit/phpunit: ^7.0
• squizlabs/php_codesniffer: ^3.2

LGPL-3.0-only

• John Rivera
• Center for Computational Research, University at Buffalo. The State University of New York

• RDF
• sparql

README

RDF Abstraction Layer for PHP: A simple SPARQL client built on top of Guzzle.

Take a look at the list target in the Makefile for how to use make to manage the project.

An example of a query against the British Museum SPARQL endpoint:

$result = (new CCR\Sparql\SparqlClient(new GuzzleHttp\Client()));
    ->withEndpoint('http://collection.britishmuseum.org/sparql')
    ->withPrefix('crm', 'http://erlangen-crm.org/current/')
    ->withPrefix('fts', 'http://www.ontotext.com/owlim/fts#');
    ->query('
        SELECT DISTINCT ?obj
        {
            ?obj crm:P102_has_title ?title .
            ?title rdfs:label ?label .
            FILTER(STR(?label) = "Hoa Hakananai\'a")
        }
    ');
print_r($result);