Backend\Core\Engine\Language::getInterfaceLanguage PHP Метод

    public static function getInterfaceLanguage()
    {
        trigger_error('Backend\\Core\\Engine\\Language is deprecated.
             It has been moved to Backend\\Core\\Language\\Language', E_USER_DEPRECATED);
        return parent::getInterfaceLanguage();
    }

 /**
  * Load the form
  */
 private function loadForm()
 {
     // gender dropdown values
     $genderValues = array('male' => \SpoonFilter::ucfirst(BL::getLabel('Male')), 'female' => \SpoonFilter::ucfirst(BL::getLabel('Female')));
     // birthdate dropdown values
     $days = range(1, 31);
     $months = \SpoonLocale::getMonths(BL::getInterfaceLanguage());
     $years = range(date('Y'), 1900);
     // create form
     $this->frm = new BackendForm('add');
     // create elements
     $this->frm->addText('email');
     $this->frm->addPassword('password');
     $this->frm->addText('display_name');
     $this->frm->addText('first_name');
     $this->frm->addText('last_name');
     $this->frm->addText('city');
     $this->frm->addDropdown('gender', $genderValues);
     $this->frm->addDropdown('day', array_combine($days, $days));
     $this->frm->addDropdown('month', $months);
     $this->frm->addDropdown('year', array_combine($years, $years));
     $this->frm->addDropdown('country', Intl::getRegionBundle()->getCountryNames(BL::getInterfaceLanguage()));
     // set default elements dropdowns
     $this->frm->getField('gender')->setDefaultElement('');
     $this->frm->getField('day')->setDefaultElement('');
     $this->frm->getField('month')->setDefaultElement('');
     $this->frm->getField('year')->setDefaultElement('');
     $this->frm->getField('country')->setDefaultElement('');
 }