How to set up CircleCI in PHP project

How to set up CircleCI config file on local PC.

Install circleci command

curl -o /usr/local/bin/circleci https://circle-downloads.s3.amazonaws.com/releases/build_agent_wrapper/circleci && chmod +x /usr/local/bin/circleci
circleci update

Create config file

The following file is often used in my PHP project.
Regarding the docker image, please see this official page.

# PHP CircleCI 2.0 configuration file
#
# Check https://circleci.com/docs/2.0/language-php/ for more details
#
version: 2

jobs:
  build:

    docker:
      - image: circleci/php:7.0-apache-node-browsers

    steps:
      - checkout

      - run: echo -e "[Date]\ndate.timezone = Asia/Tokyo" | sudo tee /usr/local/etc/php/php.ini > /dev/null

      - run: chmod -R 777 ./storage
      - run: chmod -R 777 ./bootstrap/cache

      - run: sudo apt-get update -y
      - run: sudo apt-get install -y libpng-dev libjpeg-dev zip unzip git
      - run: sudo rm -rf /var/lib/apt/lists/*
      - run: sudo docker-php-ext-install zip
      - run: sudo docker-php-ext-configure gd --with-jpeg-dir=/usr/lib/x86_64-linux-gnu/
      - run: sudo docker-php-ext-install pdo pdo_mysql gd mbstring zip
      - run: sudo composer self-update

      - restore_cache:
          keys:
            - composer-v1-{{ checksum "composer.json" }}
            - composer-v1-
      - run: composer install -n --prefer-dist
      - save_cache:
          key: composer-v1-{{ checksum "composer.json" }}
          paths:
            - vendor

      - run: cp .env.example .env

      - run:
          name: Run PhpUnit
          command: ./vendor/bin/phpunit

Validate syntax of config.yml

circleci config validate -c .circleci/config.yml

Run to build and test

circleci build .circleci/config.yml