setUsername(DEMOS_ZEND_SERVICE_LIVEDOCX_USERNAME) ->setPassword(DEMOS_ZEND_SERVICE_LIVEDOCX_PASSWORD); $mailMerge->getTemplateFormats(); // then call methods as usual printf('Username : %s%sPassword : %s%s WSDL : %s%s%s', $mailMerge->getUsername(), PHP_EOL, $mailMerge->getPassword(), PHP_EOL, $mailMerge->getWsdl(), PHP_EOL, PHP_EOL ); unset($mailMerge); // ----------------------------------------------------------------------------- // Alternatively, you can pass username and password in the constructor. $mailMerge = new Zend_Service_LiveDocx_MailMerge( array ( 'username' => DEMOS_ZEND_SERVICE_LIVEDOCX_USERNAME, 'password' => DEMOS_ZEND_SERVICE_LIVEDOCX_PASSWORD, ) ); $mailMerge->getTemplateFormats(); // then call methods as usual printf('Username : %s%sPassword : %s%s WSDL : %s%s%s', $mailMerge->getUsername(), PHP_EOL, $mailMerge->getPassword(), PHP_EOL, $mailMerge->getWsdl(), PHP_EOL, PHP_EOL ); unset($mailMerge);