Update to require PHP 7.1+

.github/workflows/ci.yml

@@ -19,11 +19,6 @@ jobs:
           - 7.3
           - 7.2
           - 7.1
-          - 7.0
-          - 5.6
-          - 5.5
-          - 5.4
-          - 5.3
     steps:
       - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
@@ -56,7 +51,6 @@ jobs:
           - 7.3
           - 7.2
           - 7.1
-          - 7.0
     steps:
       - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
@@ -104,19 +98,3 @@ jobs:
         if: ${{ matrix.php >= 7.3 }}
       - run: vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
         if: ${{ matrix.php < 7.3 }}
-
-  PHPUnit-hhvm:
-    name: PHPUnit (HHVM)
-    runs-on: ubuntu-22.04
-    continue-on-error: true
-    steps:
-      - uses: actions/checkout@v4
-      - run: cp "$(which composer)" composer.phar && ./composer.phar self-update --2.2 # downgrade Composer for HHVM
-      - name: Run hhvm composer.phar install
-        uses: docker://hhvm/hhvm:3.30-lts-latest
-        with:
-          args: hhvm composer.phar install
-      - name: Run hhvm vendor/bin/phpunit
-        uses: docker://hhvm/hhvm:3.30-lts-latest
-        with:
-          args: hhvm vendor/bin/phpunit

README.md

@@ -830,8 +830,7 @@ composer require react/event-loop:^3@dev
 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 8+ and
-HHVM.
+extensions and supports running on PHP 7.1 through current PHP 8+.
 It's *highly recommended to use the latest supported PHP version* for this project.
 
 Installing any of the event loop extensions is suggested, but entirely optional.

composer.json

@@ -26,10 +26,10 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0"
+        "php": ">=7.1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6 || ^5.7 || ^4.8.36"
+        "phpunit/phpunit": "^9.6 || ^5.7"
     },
     "suggest": {
         "ext-pcntl": "For signal handling support when using the StreamSelectLoop"

phpunit.xml.legacy

@@ -2,7 +2,7 @@
 
 <!-- PHPUnit configuration file with old format for legacy PHPUnit -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/4.8/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/5.7/phpunit.xsd"
          bootstrap="vendor/autoload.php"
          colors="true">
     <testsuites>

src/ExtEvLoop.php

@@ -16,7 +16,7 @@
  * that provides an interface to `libev` library.
  * `libev` itself supports a number of system-specific backends (epoll, kqueue).
  *
- * This loop is known to work with PHP 5.4 through PHP 8+.
+ * This loop is known to work with PHP 7.1 through PHP 8+.
  *
  * @see http://php.net/manual/en/book.ev.php
  * @see https://bitbucket.org/osmanov/pecl-ev/overview

src/ExtEventLoop.php

@@ -16,7 +16,7 @@
  * that provides an interface to `libevent` library.
  * `libevent` itself supports a number of system-specific backends (epoll, kqueue).
  *
- * This loop is known to work with PHP 5.4 through PHP 8+.
+ * This loop is known to work with PHP 7.1 through PHP 8+.
  *
  * @link https://pecl.php.net/package/event
  */

src/ExtUvLoop.php

@@ -13,7 +13,7 @@
  * that provides an interface to `libuv` library.
  * `libuv` itself supports a number of system-specific backends (epoll, kqueue).
  *
- * This loop is known to work with PHP 7+.
+ * This loop is known to work with PHP 7.1 through PHP 8+.
  *
  * @see https://github.com/bwoebi/php-uv
  */

src/StreamSelectLoop.php

@@ -12,7 +12,7 @@
  * This uses the [`stream_select()`](https://www.php.net/manual/en/function.stream-select.php)
  * function and is the only implementation that works out of the box with PHP.
  *
- * This event loop works out of the box on PHP 5.4 through PHP 8+ and HHVM.
+ * This event loop works out of the box on PHP 7.1 through PHP 8+.
  * This means that no installation is required and this library works on all
  * platforms and supported PHP versions.
  * Accordingly, the [`Loop` class](#loop) will use this event loop by default if