protected function parseInstances($response, &$titles)
{
global $smwgSPARQLResultEncoding;
// PHP strings are always interpreted in ISO-8859-1 but may be actually encoded in
// another charset.
if (isset($smwgSPARQLResultEncoding) && $smwgSPARQLResultEncoding == 'UTF-8') {
$response = utf8_decode($response);
}
$dom = simplexml_load_string($response);
$results = $dom->xpath('//result');
foreach ($results as $r) {
$children = $r->children();
// binding nodes
$b = $children->binding[0];
// instance
$sv = $b->children()->uri[0];
if (is_null($sv)) {
$sv = $b->children()->bnode[0];
}
if (is_null($sv)) {
continue;
}
$metadataMap = array();
foreach ($sv->attributes() as $mdProperty => $mdValue) {
if (strpos($mdProperty, "_meta_") === 0) {
$metadataMap[strtoupper($mdProperty)] = explode("|||", $mdValue);
}
}
list($url, $title) = TSHelper::makeLocalURL((string) $sv);
$instance = array($title, $url, $metadataMap);
$categories = array();
$b = $children->binding[1];
// categories
foreach ($b->children()->uri as $sv) {
$category = TSHelper::getTitleFromURI((string) $sv);
if (!is_null($instance) && !is_null($category)) {
$titles[] = array($instance, array((string) $sv, TSHelper::getTitleFromURI((string) $sv)));
} else {
$titles[] = array($instance, array(NULL, NULL));
}
}
}
}
