Installs PHP extensions in a development container.

Official Docker PHP images from https://hub.docker.com/_/php include docker-php-ext-install, docker-php-ext-configure, docker-php-ext-enable, and docker-php-source. On those images this feature downloads mlocati/docker-php-extension-installer 2.2.5 and runs it.

Debian and Ubuntu images, including mcr.microsoft.com/devcontainers/base, do not include those commands. On those images this feature installs php-cli and the distro package for each extension. zip installs php-zip. Apt repositories from the image choose the PHP version.

Any other image stops before that installer is downloaded. The error names both supported bases. This feature does not add fake docker-php-ext-* commands to look like an official PHP image.

extensions is a string of extension names separated by spaces or commas. Example: zip or zip, gd.

Official PHP image:

{
  "image": "php:8.3-cli",
  "features": {
    "ghcr.io/opencodeco/devcontainers/install-php-extensions": {
      "extensions": "zip"
    }
  }
}

Debian or Ubuntu image:

{
  "image": "mcr.microsoft.com/devcontainers/base:bullseye",
  "features": {
    "ghcr.io/opencodeco/devcontainers/install-php-extensions": {
      "extensions": "zip"
    }
  }
}

From the repository root:

bash tests/install-php-extensions.sh

That check does not build an image and does not install packages.