Add phpstan #154

	name: Tests

	on:
	push:
	pull_request:

	jobs:

	tests:
	name: Tests (PHP ${{ matrix.php-versions }} on ${{ matrix.operating-system }})
	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	operating-system: ['ubuntu-latest']
	php-versions: ['7.4', '8.0', '8.1', '8.2']

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- run: echo "💡 The ${{ github.repository }} repository has been cloned to the runner."

	- name: Setup PHP, with composer and extensions
	uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php
	with:
	php-version: ${{ matrix.php-versions }}
	tools: phpunit
	extensions: mbstring, xml, ctype, iconv, intl, pdo_sqlite
	coverage: xdebug

	# Install composer dependencies and handle caching in one go.
	# @link https://github.com/marketplace/actions/install-composer-dependencies
	- name: "Install Composer dependencies"
	uses: "ramsey/composer-install@v2"

	- name: Run static code analysis
	run: composer run phpstan -- --error-format=github

	- name: Run tests
	run: vendor/bin/phpunit --coverage-text

	- name: Upload coverage reports to Codecov
	uses: codecov/codecov-action@v3
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

	- run: echo "🍏 This job's status is ${{ job.status }}."

Provide feedback