original_string: public function close()
      {
          if ($this->_stmt) {
              $r = $this->_stmt->close();
              $this->_stmt = null;
              return $r;
          }
          return false;
      }
code: public function close()
      {
          if ($this->_stmt) {
              $r = $this->_stmt->close();
              $this->_stmt = null;
              return $r;
          }
          return false;
      }
code_tokens: public function close ( ) { if ( $ this -> _stmt ) { $ r = $ this -> _stmt -> close ( ) ; $ this -> _stmt = null ; return $ r ; } return false ; }
docstring: Closes the cursor and the statement.
  
  @return bool
docstring_tokens: Closes the cursor and the statement .