Support PHP 8

Author: SimonFrings

.github/workflows/ci.yml

@@ -14,6 +14,7 @@ jobs:
           - ubuntu-20.04
           - windows-2019
         php:
+          - 8.0
           - 7.4
           - 7.3
           - 7.2
@@ -43,7 +44,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: shivammathur/setup-php@v2
         with:
-          php-version: 7.4
+          php-version: 8.0
           coverage: xdebug
       - run: composer install
       - run: vendor/bin/phpunit --coverage-text

README.md

@@ -1433,7 +1433,7 @@ $ composer require react/socket:^1.6
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
 
 This project aims to run on any platform and thus does not require any PHP
-extensions and supports running on legacy PHP 5.3 through current PHP 7+ and HHVM.
+extensions and supports running on legacy PHP 5.3 through current PHP 8+ and HHVM.
 It's *highly recommended to use PHP 7+* for this project, partly due to its vast
 performance improvements and partly because legacy PHP versions require several
 workarounds as described below.