How to enable curl extension other features?

[vndroid]

The docker image php:8.2.8-fpm-alpine3.18 already has the curl extension, but some feature is disabled.

If I want to enable the CharConv and http3,

I try the command:

docker-php-ext-configure curl --with-http3
# or
docker-php-ext-configure curl --enable-http3

but they are both unrecognized. what should I do it?

[tianon]

https://hub.docker.com/_/php#:~:text=How%20to%20install%20more%20PHP%20extensions

How to install more PHP extensions

Many extensions are already compiled into the image, so it's worth checking the output of php -m or php -i before going through the effort of compiling more.

We provide the helper scripts docker-php-ext-configure, docker-php-ext-install, and docker-php-ext-enable to more easily install PHP extensions.

In order to keep the images smaller, PHP's source is kept in a compressed tar file. To facilitate linking of PHP's source with any extension, we also provide the helper script docker-php-source to easily extract the tar or delete the extracted source. Note: if you do use docker-php-source to extract the source, be sure to delete it in the same layer of the docker image.

FROM php:8.2-cli
RUN docker-php-source extract \
  # do important things \
  && docker-php-source delete

PHP Core Extensions

For example, if you want to have a PHP-FPM image with the gd extension, you can inherit the base image that you like, and write your own Dockerfile like this:

FROM php:8.2-fpm
RUN apt-get update && apt-get install -y \
      libfreetype-dev \
      libjpeg62-turbo-dev \
      libpng-dev \
  && docker-php-ext-configure gd --with-freetype --with-jpeg \
  && docker-php-ext-install -j$(nproc) gd

Remember, you must install dependencies for your extensions manually. If an extension needs custom configure arguments, you can use the docker-php-ext-configure script like this example. There is no need to run docker-php-source manually in this case, since that is handled by the configure and install scripts.

If you are having difficulty figuring out which Debian or Alpine packages need to be installed before docker-php-ext-install, then have a look at the install-php-extensions project. This script builds upon the docker-php-ext-* scripts and simplifies the installation of PHP extensions by automatically adding and removing Debian (apt) and Alpine (apk) packages. For example, to install the GD extension you simply have to run install-php-extensions gd. This tool is contributed by community members and is not included in the images, please refer to their Git repository for installation, usage, and issues.

See also "Dockerizing Compiled Software" for a description of the technique Tianon uses for determining the necessary build-time dependencies for any bit of software (which applies directly to compiling PHP extensions).

Default extensions

Some extensions are compiled by default. This depends on the PHP version you are using. Run php -m in the container to get a list for your specific version.