source: php/trunk/samples/rdfa_parse_sparql/sample.php

<?PHP

/* RDFInt.php - RDF Interfaces for PHP
 * Copyright 2011 netlabs.org
 * Author: Christian Langanke, Adrian Gschwend
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// load library setup
require_once( '../sample_config.php');
define( 'RDFINT', getenv( 'PHP_LIBROOT_RDFINT'));
require_once( RDFINT.'/rdfa.php');

$debugger = \fDebug::getInstance();
const debugcontext = "RDFA_SAMPLE";

$turtlefile = "sample.ttl";

// ---------------------------------------------------------------


$aNamespace = array( 'dbo'     => 'http://dbpedia.org/ontology/',
                     'rdfs'    => 'http://www.w3.org/2000/01/rdf-schema#',
                     'dcterms' => 'http://purl.org/dc/terms/'
                   );

// setup data RDF object
$rdfaData = new \rdfa\Data();

// setup namespace mappings
foreach ( $aNamespace as $prefix => $uriNamespace) {
  $rdfaData->setMapping( $prefix, $uriNamespace);
}


    $uriCityToSearch = 'http://dbpedia.org/resource/Biel/Bienne';

        $config = array(
      'remote_store_endpoint'  => 'http://dbpedia.org/sparql',
      'reader_timeout'         => 30
        );

        $statement = '
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dcterms: <http://purl.org/dc/terms/>

CONSTRUCT 
{
  ?s rdfs:label ?city_name .
}
  WHERE {
  ?s dcterms:subject <http://dbpedia.org/resource/Category:Cities_in_Switzerland> .
  ?s rdfs:label ?city_name FILTER (LANG(?city_name) = "en")
}
        ';

// create endpoint configuration object
$endpoint = new \rdfa\SparqlEndpoint( $config);

// create SPARQL query object
$query = new \rdfa\SparqlQuery( $endpoint, $statement);


// test sparql query directly
$data = $query->run();

// let the parse method execute the query to
$result = $rdfaData->parse( $query);

// show items found
$aSubject = $rdfaData->getSubjects();





?>