original_string: public function execute($params = null)
      {
          $this->_hasExecuted = true;
  
          return $this->_statement->execute($params);
      }
code: public function execute($params = null)
      {
          $this->_hasExecuted = true;
  
          return $this->_statement->execute($params);
      }
code_tokens: public function execute ( $ params = null ) { $ this -> _hasExecuted = true ; return $ this -> _statement -> execute ( $ params ) ; }
docstring: Executes the statement by sending the SQL query to the database. It can optionally
  take an array or arguments to be bound to the query variables. Please note
  that binding parameters from this method will not perform any custom type conversion
  as it would normally happen when calling `bindValue`.
  
  @param array|null $params list of values to be bound to query
  @return bool true on success, false otherwise
docstring_tokens: Executes the statement by sending the SQL query to the database . It can optionally take an array or arguments to be bound to the query variables . Please note that binding parameters from this method will not perform any custom type conversion as it would normally happen when calling bindValue .