Instead of using a local installation of the PHP library, it’s possible to create a static build of FrankenPHP thanks to the great static-php-cli project (despite its name, this project support all SAPIs, not only CLI).
With this method, a single, portable, binary will contain the PHP interpreter, the Caddy web server and FrankenPHP!
FrankenPHP also supports embedding the PHP app in the static binary.
We provide a Docker image to build a Linux static binary:
docker buildx bake --load static-builder
docker cp $(docker create --name static-builder dunglas/frankenphp:static-builder):/go/src/app/dist/frankenphp-linux-$(uname -m) frankenphp ; docker rm static-builder
The resulting static binary is named
frankenphp and is available in the current directory.
If you want to build the static binary without Docker, take a look at the macOS instructions, which also works for Linux.
By default, most popular PHP extensions are compiled.
To reduce the size of the binary and to reduce the attack surface, you can choose the list of extensions to build using the
PHP_EXTENSIONS Docker ARG.
For instance, run the following command to only build the
docker buildx bake --load --set static-builder.args.PHP_EXTENSIONS=opcache,pdo_sqlite static-builder
To add libraries enabling additional functionality to the extensions you’ve enabled, you can pass use the
PHP_EXTENSION_LIBS Docker ARG:
docker buildx bake \
--set static-builder.args.PHP_EXTENSIONS=gd \
--set static-builder.args.PHP_EXTENSION_LIBS=libjpeg,libwebp \
See also how to customize the build
If you hit the GitHub API rate limit, set a GitHub Personal Access Token in an environment variable named
GITHUB_TOKEN="xxx" docker --load buildx bake static-builder
Run the following script to create a static binary for macOS (you must have Homebrew installed):
git clone https://github.com/dunglas/frankenphp
Note: this script also works on Linux (and probably on other Unixes), and is used internally by the Docker based static builder we provide.
The following environment variables can be passed to
docker build and to the
script to customize the static build:
FRANKENPHP_VERSION: the version of FrankenPHP to use
PHP_VERSION: the version of PHP to use
PHP_EXTENSIONS: the PHP extensions to build (list of supported extensions)
PHP_EXTENSION_LIBS: extra libraries to build that add features to the extensions
EMBED: path of the PHP application to embed in the binary
CLEAN: when set, libphp and all its dependencies are built from scratch (no cache)
DEBUG_SYMBOLS: when set, debug-symbols will not be stripped and will be added within the binary
RELEASE: (maintainers only) when set, the resulting binary will be uploaded on GitHub