Fix opacity calculation problem with the agg renderer (#5697) (#7085) #69

	name: Build and test PHP MapScript

	on:
	push:
	branches:
	- 'main'
	except:
	- /^(cherry-pick-)?backport-\d+-to-/

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	build:
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	php-version: [8.1, 8.2]
	env:
	IGNORE_COMPARISON_RESULT_ON_CI: 'true'

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.8

	- name: Setup PHP
	run: \|
	# for pre-installed software see
	# https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2004-Readme.md
	# both swig and php are included, so removed these
	sudo apt-get -qq remove "php-cli" "php-dev"
	sudo apt-get -qq remove "swig*"
	sudo add-apt-repository ppa:ondrej/php -y
	sudo apt-get -qq update
	sudo apt-get -qq install php${{ matrix.php-version }}-cli php${{ matrix.php-version }}-dev

	- name: Install dependencies
	run: ./ci/setup.sh

	- name: Build
	run: ./ci/build.sh

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