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PHP "*-base" Image

All *-base images are based on Alpine Linux and include only the necessary layers. Because of this, the images are tiny and very optimized.

Features​

Pre-installed PHP Extensions (45+)​

All base images come with over 45 PHP extensions pre-installed:

Click to view all extensions
bcmath, Core, ctype, curl, date, dba, dom, exif, fileinfo, filter, ftp, gd, gettext,
hash, iconv, igbinary, intl, json, libxml, mbstring, mcrypt, memcached, mongodb,
mysqli, mysqlnd, openssl, pcntl, pcre, PDO, pdo_dblib, pdo_mysql, pdo_pgsql,
pdo_sqlite, Phar, posix, readline, redis, Reflection, session, shmop, SimpleXML,
soap, sockets, SPL, sqlite3, standard, tokenizer, xdebug, xml, xmlreader, xmlwriter,
xsl, yaml, zip, zlib

Additional Tools​

  • Composer - Latest version included
  • vim - Text editor for file editing within containers
  • git - Version control system
  • bash - Enhanced shell

Usage​

Basic Usage​

docker run -it --rm byjg/php:8.3-base php --version

Running PHP Scripts​

docker run -v $PWD:/workdir -w /workdir byjg/php:8.3-base php script.php

Exposed Ports​

PortPurpose
9001XDebug

Security​

Non-Root User​

All images run as a non-root user (app) for enhanced security. This follows container security best practices by limiting potential damage from container breakouts.

User Details:

  • Username: app
  • Group: app
  • Home Directory: /srv

Permission Considerations​

When mounting volumes, ensure the non-root user has appropriate permissions:

# Option 1: Set ownership on host
chown -R 1000:1000 /path/to/your/project

# Option 2: Run container with user option (less secure)
docker run --user root byjg/php:8.3-base

# Option 3: Mount with appropriate permissions
docker run -v $PWD:/srv:rw byjg/php:8.3-base
aviso

Running as root (--user root) defeats the security benefits of non-root containers. Only use this for debugging or when absolutely necessary.

Installing Additional Packages​

If you need to install additional packages in a derived Dockerfile, temporarily switch to root:

FROM byjg/php:8.3-base

USER root
RUN apk add --no-cache additional-package
USER app

# Your application code
COPY --chown=app:app . /srv

Customization​

Adding Custom PHP Configuration​

You can add custom PHP configuration by mounting .ini files to /etc/php/conf.d:

docker run -v $PWD/custom.ini:/etc/php/conf.d/custom.ini byjg/php:8.3-base