original_string: public function exec($sql)
      {
          $this->writeToLog("Exec: " . $sql);
          $result = parent::exec($sql);
          return $result;
      }
code: public function exec($sql)
      {
          $this->writeToLog("Exec: " . $sql);
          $result = parent::exec($sql);
          return $result;
      }
code_tokens: public function exec ( $ sql ) { $ this -> writeToLog ( "Exec: " . $ sql ) ; $ result = parent :: exec ( $ sql ) ; return $ result ; }
docstring: Used to issue statements which return no results but rather the number of rows affected
  
  @param string $sql
  @return integer The number of rows affected
docstring_tokens: Used to issue statements which return no results but rather the number of rows affected