$nval = '(unbound)';
}
print " " . librdf_query_results_get_binding_name($results, $i) . "=" . $nval . "\n";
}
print "}\n";
librdf_query_results_next($results);
$count++;
}
if ($results) {
print "Returned {$count} results\n";
}
$results = null;
print "\nExecuting query again\n";
$results = librdf_model_query_execute($model, $query);
if ($results) {
$str = librdf_query_results_to_string($results, null, null);
print "Query results serialized to an XML string size " . strlen($str) . " bytes\n";
} else {
print "Query results couldn't be serialized to an XML string\n";
}
$serializer = librdf_new_serializer($world, 'rdfxml', null, null);
print "Redland serializer created\n";
$base = librdf_new_uri($world, 'http://example.org/base.rdf');
print "Serializing...\n";
librdf_serializer_serialize_model_to_file($serializer, './test-out.rdf', $base, $model);
print "Done...\n";
librdf_free_serializer($serializer);
librdf_free_uri($base);
librdf_free_model($model);
librdf_free_storage($storage);
print "Done\n";
/**
* Serialize the model and write the contents to a file.
*
* @param LibRDF_Serializer $serializer The serializer to use
* @param string $file_name The name of the file to which to write
* @param string $base_uri The base URI to use
* @return void
* @throws LibRDF_Error If unable to serialize the model
* @access public
*/
public function serializeStatementsToFile(LibRDF_Serializer $serializer, $file_name, $base_uri = NULL)
{
if ($base_uri) {
$base_uri = new LibRDF_URI($base_uri);
}
$ret = librdf_serializer_serialize_model_to_file($serializer->getSerializer(), $file_name, $base_uri ? $base_uri->getURI() : $base_uri, $this->model);
if ($ret) {
throw new LibRDF_Error("Error serializing model to file");
}
}
