Metaregistrar\EPP\eppConnection::writeRequest PHP Method

    public function writeRequest(eppRequest $content)
    {
        //$requestsessionid = $content->getSessionId();
        $namespaces = $this->getDefaultNamespaces();
        if (is_array($namespaces)) {
            foreach ($namespaces as $id => $namespace) {
                $content->addExtension($id, $namespace);
            }
        }
        /*
         * $content->login is only set if this is an instance or a sub-instance of an eppLoginRequest
         */
        if ($content->login) {
            /* @var $content eppLoginRequest */
            // Set username for login request
            $content->addUsername($this->getUsername());
            // Set password for login request
            $content->addPassword($this->getPassword());
            // Set 'new password' for login request
            if ($this->getNewPassword()) {
                $content->addNewPassword($this->getNewPassword());
            }
            // Add version to this object
            $content->addVersion($this->getVersion());
            // Add language to this object
            $content->addLanguage($this->getLanguage());
            // Add services and extensions to this content
            $content->addServices($this->getServices(), $this->getExtensions());
        }
        /*
         * $content->hello is only set if this is an instance or a sub-instance of an eppHelloRequest
         */
        if (!$content->hello) {
            /**
             * Add used namespaces to the correct places in the XML
             */
            $content->addNamespaces($this->getServices());
            $content->addNamespaces($this->getExtensions());
        }
        $content->formatOutput = false;
        if ($this->write($content->saveXML(null, LIBXML_NOEMPTYTAG))) {
            return true;
        } else {
            return false;
        }
    }