> For the complete documentation index, see [llms.txt](https://antonshevchuk.gitbook.io/php-for-beginners/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://antonshevchuk.gitbook.io/php-for-beginners/appendix.md).

# Дополнение

- [Использование assert](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/assert.md)
- [Отладка кода](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/otladka-koda.md)
- [PSR-3: Logger Interface; Monolog](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/psr-3-logger-interface-monolog.md)
- [PSR-7: HTTP message interfaces;](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/psr-7-http-message-interfaces.md)
- [Тестирование кода](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/testirovanie-koda.md)
- [CI, CD](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/ci-cd.md)
- [Composer](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/composer.md)
- [API](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/api.md)
- [AJAX](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/ajax.md)
- [XDebug](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/xdebug.md)
- [Нововведения PHP 7.3](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/novovvedeniya-php-7.3.md)
- [Нововведения PHP 8.0](https://antonshevchuk.gitbook.io/php-for-beginners/appendix/novovvedeniya-php-8.0.md)