api/MarkLogic/MLPHP/Document.php
public function writeMetadata($metadata)
    {
        $metaxml = $metadata->getAsXML();
        try {
            $params = array('uri' => $this->uri, 'category' => 'metadata', 'format' => 'xml');
            $headers = array('Content-type' => 'application/xml');
            $request = new RESTRequest('PUT', 'documents', $params, $metaxml, $headers);
            $this->response = $this->client->send($request);
        } catch(\Exception $e) {
            $this->logger->error( $e->getMessage() . ' in ' . $e->getFile() . ' on line ' . $e->getLine() );
        }
        return $this;
    }
public function writeMetadata($metadata)
    {
        $metaxml = $metadata->getAsXML();
        try {
            $params = array('uri' => $this->uri, 'category' => 'metadata', 'format' => 'xml');
            $headers = array('Content-type' => 'application/xml');
            $request = new RESTRequest('PUT', 'documents', $params, $metaxml, $headers);
            $this->response = $this->client->send($request);
        } catch(\Exception $e) {
            $this->logger->error( $e->getMessage() . ' in ' . $e->getFile() . ' on line ' . $e->getLine() );
        }
        return $this;
    }
Write document metadata to the database.

@param Metadata $metadata A Metadata object.
@return Document $this