Docs

Fix isset check and set correct value #288

	# .github/workflows/documentation.yml
	name: Docs

	on: [push]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- uses: php-actions/composer@v6
	with:
	php_version: "7.4"
	php_extensions: redis exif mongodb intl pdo_pgsql zip mysqli pdo_mysql pcntl gd gmp
	version: 2.x
	command: require clean/phpdoc-md
	- name: Build the docs
	run: vendor/bin/phpdoc-md
	- name: Git commit
	run: \|
	git config user.name "GitHub Actions"
	git config user.email ""
	git add docs/classes
	git commit -m "Update phpdoc" \|\| echo "No changes to commit"
	git push

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