Fix PHP warning caused by undefined array key when fetching customer account with no matching results #4736

	name: Linting

	on:
	pull_request

	env:
	WP_VERSION: latest
	WC_VERSION: latest

	jobs:
	php_lint:
	name: PHP linting
	runs-on: ubuntu-latest
	steps:
	# clone the repository
	- uses: actions/checkout@v2
	# enable dependencies caching
	- uses: actions/cache@v2
	with:
	path: ~/.cache/composer/
	key: ${{ runner.os }}-composer-${{ hashFiles('composer.lock') }}
	# setup PHP, but without debug extensions for reasonable performance
	- uses: shivammathur/setup-php@v2
	with:
	php-version: '7.4'
	tools: composer
	coverage: none
	# install dependencies and run linter
	- run: composer self-update 2.0.6 && composer install --no-progress && ./vendor/bin/phpcs --standard=phpcs.xml.dist -n $(git ls-files \| grep .php$)
	js_css_lint:
	name: JS & CSS linting
	runs-on: ubuntu-latest
	steps:
	# clone the repository
	- uses: actions/checkout@v2
	# use the node version defined in nvmrc
	- uses: actions/setup-node@v2
	with:
	node-version-file: '.nvmrc'
	# enable dependencies caching
	- uses: actions/cache@v2
	with:
	path: ~/.cache/composer/
	key: ${{ runner.os }}-composer-${{ hashFiles('composer.lock') }}
	- uses: actions/cache@v2
	with:
	path: ~/.npm/
	key: ${{ runner.os }}-npm-${{ hashFiles('package-lock.json') }}
	# install dependencies and run linter
	- run: npm ci
	- run: npm run lint:js
	- run: npm run lint:css

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