code: protected function checkAllNotEmpty()
      {
          $foundEmpty = false;
  
          $args = func_get_args();
  
          foreach ($args as $arg) {
              if (empty($arg)) {
                  $foundEmpty = true;
                  break;
              }
          }
  
          return !$foundEmpty;
      }
docs: Check if all parameters to the current function are not empty
  
  @param mixed
  @return boolean true if all parameters are not empty