original_string: public function valid_page_and_view(&$validpages, &$pageviews) {
          $validpages[$this->properties->id] = 1;
          return $this->properties->nextpageid;
      }
code: public function valid_page_and_view(&$validpages, &$pageviews) {
          $validpages[$this->properties->id] = 1;
          return $this->properties->nextpageid;
      }
code_tokens: public function valid_page_and_view ( & $ validpages , & $ pageviews ) { $ validpages [ $ this -> properties -> id ] = 1 ; return $ this -> properties -> nextpageid ; }
docstring: This method is used to determine if this page is a valid page
  
  @param array $validpages
  @param array $pageviews
  @return int The next page id to check
docstring_tokens: This method is used to determine if this page is a valid page