/** * Create the root XML element to use with a request * * @param Operation $operation Operation object * * @return \XMLWriter */ protected function createRootElement(Operation $operation) { static $defaultRoot = array('name' => 'Request'); // If no root element was specified, then just wrap the XML in 'Request' $root = $operation->getData('xmlRoot') ?: $defaultRoot; // Allow the XML declaration to be customized with xmlEncoding $encoding = $operation->getData('xmlEncoding'); $xmlWriter = $this->startDocument($encoding); $xmlWriter->startElement($root['name']); // Create the wrapping element with no namespaces if no namespaces were present if (!empty($root['namespaces'])) { // Create the wrapping element with an array of one or more namespaces foreach ((array) $root['namespaces'] as $prefix => $uri) { $nsLabel = 'xmlns'; if (!is_numeric($prefix)) { $nsLabel .= ':' . $prefix; } $xmlWriter->writeAttribute($nsLabel, $uri); } } return $xmlWriter; }