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Last active June 5, 2023 07:53
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Debug PHP in Docker with PHPStorm and Xdebug

Debug your PHP in Docker with Intellij/PHPStorm and Xdebug

  1. For your local dev, create a Dockerfile that is based on your production image and simply install xdebug into it. Exemple:
FROM php:5

RUN yes | pecl install xdebug \
    && echo "zend_extension=$(find /usr/local/lib/php/extensions/ -name" > /usr/local/etc/php/conf.d/xdebug.ini \
    && echo "xdebug.remote_enable=on" >> /usr/local/etc/php/conf.d/xdebug.ini \
    && echo "xdebug.remote_autostart=off" >> /usr/local/etc/php/conf.d/xdebug.ini
  1. Get you local IP address (ip -o -4 addr list ${MY_NETWORK_INTERFACE:-eth0} | awk '{print $4}' | cut -d/ -f1)
  2. Start your container with the following environment variables: XDEBUG_CONFIG="remote_host={{YOUR_IP_ADDRESS}}"
  • Simple docker run: docker run -e XDEBUG_CONFIG="remote_host={{YOUR_IP_ADDRESS}}" your-image

  • With docker-compose:

    # docker-compose.yml
      build: path/to/Dockerfile
        XDEBUG_CONFIG: "remote_host={{YOUR_IP_ADDRESS}}"
        PHP_IDE_CONFIG: "serverName=my.local"
  1. In Intellij/PHPStorm go to: Languages & Frameworks > PHP > Servers > and set the following settings:

  • Name: name of your server, should be equal to value in PHP_IDE_CONFIG variable

Then you're all set and can start listening for PHP Debug connections from your IDE.

Happy debugging!

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@patricknelson my remote_host parameter is set to

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lunfel commented May 20, 2020

I had trouble configuring xdebug. According to an old issue, you need to remove double quotes from the environment variable as follow

changed to

And that made it work.

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