error นี่คืออะไรครับผม Function set_magic_quotes_runtime() is deprecated

if (PHP_VERSION < 6) {
        $magic_quotes = get_magic_quotes_runtime();
        set_magic_quotes_runtime(0);
      }
      $file_buffer  = file_get_contents($path);
      $file_buffer  = $this->EncodeString($file_buffer, $encoding);
      if (PHP_VERSION < 6) { set_magic_quotes_runtime($magic_quotes); }
      return $file_buffer;
    } catch (Exception $e) {
      $this->SetError($e->getMessage());
      return '';
    }