Showing what's new in PHP 8 with examples and tests

#PHP 8 what's new with examples

Showing what's new in PHP 8 with examples and tests. I believe that reading about the changes is not enough, so grab this Docker and give all changes a try. Read the docs Luke!

How does it work?

Every new change has its own separate test. Read the tests, modify them and have fun!

Documentation

1. 8.0 https://www.php.net/releases/8.0/en.php
2. 8.1
   • https://wiki.php.net/todo/php81
   • https://kinsta.com/blog/php-8-1

What's new in Php 8

1. Named arguments: https://www.php.net/releases/8.0/en.php#named-arguments
2. Attributes: https://www.php.net/releases/8.0/en.php#attributes
3. Constructor property promotion: Constructor property promotion: https://www.php.net/releases/8.0/en.php#attributes
4. Union types: https://www.php.net/releases/8.0/en.php#attributes
5. Match expression: https://www.php.net/releases/8.0/en.php#match-expression

Starting app

docker-compose up -d

Main page - localhost

http://localhost:8080/

Php info

http://localhost:8080/php_info.php

Xdebug info

http://localhost:8080/xdebug_info.php

Running tests

docker-compose run php vendor/bin/phpunit

Using PhpUnit in PhpStorm

1. PhpUnit By Remote Interpreter
2. Provide full docker path to autoloader.php /opt/project/vendor/autoload.php

Pro publico bono by Grzegorz Bielski