xdebug + vscode + docker

Install xdebug (Dockerfile example)

# 3.1.5 because of php7.4l (based on FROM php:7.4-apache)
RUN pecl install xdebug-3.1.5 && docker-php-ext-enable xdebug

Path map the config file via a bind mount:

  lal:
    container_name: omegalal
    build: "./ze-img"
    ports:
      - "80:80"
    volumes:
      - ./html:/var/www/html
      - ./xdebug-cm/xdebug.ini:/usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini

(You can figure out which config etc is loaded by using xdebug_info(); PHP function)

Create ./xdebug-cm/xdebug.ini:

zend_extension=xdebug

[xdebug]
xdebug.mode=develop,debug
; ipconfig getifaddr en0
xdebug.client_host=192.168.102.197
xdebug.start_with_request=yes

launch.json needs pathMappings:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Listen for XDebug on Docker",
            "type": "php",
            "request": "launch",
            "port": 9003,
            "pathMappings": {
                "/var/www/html/": "${workspaceFolder}"
            }
        }
    ]
}

Note that the pathMappings (/var/www/html/) refer to the DirectoryIndex in the Docker container!

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