Update PHP workflow to use matrix strategy #25

	name: PHPstan checks
	on:
	pull_request:
	branches: [ "main" ]
	push:
	branches: [ "main" ]


	permissions:
	contents: read

	jobs:
	standards:
	runs-on: ubuntu-latest
	name: Check standards
	steps:
	- uses: actions/checkout@v3

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: '8.3'

	- name: Cache hash
	id: get-cache-hash
	run: \|
	COMPOSER_HASH=`cat composer.json \| sha256sum \| head -c 40`
	DATE=`date -u "+%Y%m%d"`
	echo "hash=$COMPOSER_HASH$DATE" >> "$GITHUB_OUTPUT"
	shell: bash

	- name: Cache Composer dependencies
	uses: actions/cache@v3
	id: cache
	with:
	path: vendor
	key: ${{ runner.os }}-${{steps.get-cache-hash.outputs.hash}}

	- name: Install dependencies
	if: steps.cache.outputs.cache-hit != 'true'
	run: composer install --prefer-dist --no-progress

	- name: Run phpstan tests
	run: composer ci-phpstan

	- name: Cache Composer dependencies
	uses: actions/cache@v3
	with:
	path: vendor
	key: ${{ runner.os }}-${{steps.get-cache-hash.outputs.hash}}

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