Disable Xdebug on CircleCi with pre-built PHP Docker image

config.yaml

version: 2
jobs:
    build:
        working_directory: ~/symfony
        docker:
              - image: circleci/php:7.2-fpm-node-browsers
              - image: circleci/mysql:5.7-ram
                # MYSQL_ALLOW_EMPTY_PASSWORD=true
                # MYSQL_DATABASE=circle_test
                # MYSQL_HOST=127.0.0.1
                # MYSQL_ROOT_HOST=%
                # MYSQL_USER=root
        steps:
            - checkout
            - run:
                name: Disable xdebug
                command: |
                    sudo sed -i 's/^zend_extension/;zend_extension/g' /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini                    
# your steps below

Thank you ! It works like a charm ;-)