original_string: public function getPageKeywords()
      {
          if (!$this->parser) {
              return;
          }
  
          $node = $this->parser->find('meta[name=keywords]', 0);
  
          if ($node) {
              return $node->getAttribute('content');
          }
      }
code: public function getPageKeywords()
      {
          if (!$this->parser) {
              return;
          }
  
          $node = $this->parser->find('meta[name=keywords]', 0);
  
          if ($node) {
              return $node->getAttribute('content');
          }
      }
code_tokens: public function getPageKeywords ( ) { if ( ! $ this -> parser ) { return ; } $ node = $ this -> parser -> find ( 'meta[name=keywords]' , 0 ) ; if ( $ node ) { return $ node -> getAttribute ( 'content' ) ; } }
docstring: Get page keywords
  
  @return string url
docstring_tokens: Get page keywords