original_string: public function __isset($key)
  	{
  		if (!$this->_isParsed)
  		{
  			$this->_parseData();
  			$this->_isParsed = true;
  		}
  
  		return isset($this->_parsedData->$key);
  	}
code: public function __isset($key)
  	{
  		if (!$this->_isParsed)
  		{
  			$this->_parseData();
  			$this->_isParsed = true;
  		}
  
  		return isset($this->_parsedData->$key);
  	}
code_tokens: public function __isset ( $ key ) { if ( ! $ this -> _isParsed ) { $ this -> _parseData ( ) ; $ this -> _isParsed = true ; } return isset ( $ this -> _parsedData -> $ key ) ; }
docstring: Magic function for isset function on parsed data
  
  @param string $key
  @return boolean
docstring_tokens: Magic function for isset function on parsed data