PHP compatibility demo – complete workflow

ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:

  phpunit:
    name: PHPUnit
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        php-version:
          - "7.4"
          - "8.0"
          - "8.1"
        dependency-versions:
          - "lowest"
          - "highest"

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: ${{ matrix.php-version }}
          coverage: none

      - name: Install composer dependencies
        uses: "ramsey/composer-install@v2"
        with:
          dependency-versions: ${{ matrix.dependency-versions }}

      - name: Run PHPUnit
        run: vendor/bin/phpunit tests