setup-php/.github/workflows/workflow.yml

name: Main workflow
on: [push]
jobs:
  run:
    name: Run
    runs-on: ${{ matrix.operating-system }}
    strategy:
      max-parallel: 6
      matrix:
        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
        php-versions: ['5.6', '7.0', '7.1', '7.2', '7.3']
    steps:
    - name: Checkout
      uses: actions/checkout@master

    - name: Set Node.js 10.x
      uses: actions/setup-node@master
      with:
        version: 10.x

    - name: Installing NPM
      run: npm install  

    - name: Installing PHP
      run: node lib/install.js
      env:
        php-version: ${{ matrix.php-versions }}
        extension-csv: "mbstring, curl, mysqli, json, xml, xdebug, pcov, phpdbg"
    - name: Testing
      run: php -m