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Add PHP PIE for installing extensions to docs #2521

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97dacf8
Add PIE as method for installing PHP extensions
jnoordsij Jan 2, 2025
33b08e7
Add deprecation notice to PHP PECL extensions documentation
jnoordsij Jan 2, 2025
9bfe5ed
Update installation example based on feeback from @asgrim and @TimWolla
jnoordsij Jan 13, 2025
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21 changes: 21 additions & 0 deletions php/content.md
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Expand Up @@ -71,8 +71,29 @@ See also ["Dockerizing Compiled Software"](https://tianon.xyz/post/2017/12/26/do

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.

### PIE extensions

The latest recommended way of installing PHP extensions is through [PIE](https://github.com/php/pie). To install a PIE-compatible extension, use `pie install` to download, compile and enable it.

```dockerfile
FROM %%IMAGE%%:8.2-cli

# Install PIE here; e.g. through using Docker
RUN export DEBIAN_FRONTEND="noninteractive"; \
set -eux; \
apt-get update; apt-get install -y --no-install-recommends unzip; \
rm -rf /var/lib/apt/lists/*
COPY --from=ghcr.io/php/pie:bin /pie /usr/bin/pie
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@TimWolla TimWolla Mar 16, 2026

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Prefer the RUN --mount from docker-library/php#1554 (comment) to not unnecessarily include PIE in the final image.


# Use PIE to install extensions
RUN pie install phpredis/phpredis:^6.1 \
&& pie install xdebug/xdebug:^3.4
```

### PECL extensions

⚠️ Note: Installation of PEAR and thus also PECL with PHP is deprecated and thus subject to removal in a future PHP version. See also https://github.com/php/php-src/commit/e93d6d97aab7a5de1f7b8dc750ca9d08214de8c4.

Comment on lines 93 to +96
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@TimWolla TimWolla Mar 16, 2026

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I think it would be okay to drop the PECL section entirely. See also: docker-library/php#1654.

Some extensions are not provided with the PHP source, but are instead available through [PECL](https://pecl.php.net/). To install a PECL extension, use `pecl install` to download and compile it, then use `docker-php-ext-enable` to enable it:

```dockerfile
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