Example of PHP 7.2.x Docker image install with MS SQL Server extensions

Dockerfile

FROM php:7.2.11-fpm
WORKDIR /application

ENV ACCEPT_EULA=Y

# Fix debconf warnings upon build
ARG DEBIAN_FRONTEND=noninteractive

# Install selected extensions and other stuff
RUN apt-get update \
    && apt-get -y --no-install-recommends install apt-utils libxml2-dev gnupg apt-transport-https \
    && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*

# Install git
RUN apt-get update \
    && apt-get -y install git \
    && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*

# Install MS ODBC Driver for SQL Server
RUN curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add - \
    && curl https://packages.microsoft.com/config/debian/9/prod.list > /etc/apt/sources.list.d/mssql-release.list \
    && apt-get update \
    && apt-get -y --no-install-recommends install msodbcsql17 unixodbc-dev \
    && pecl install sqlsrv \
    && pecl install pdo_sqlsrv \
    && echo "extension=pdo_sqlsrv.so" >> `php --ini | grep "Scan for additional .ini files" | sed -e "s|.*:\s*||"`/30-pdo_sqlsrv.ini \
    && echo "extension=sqlsrv.so" >> `php --ini | grep "Scan for additional .ini files" | sed -e "s|.*:\s*||"`/30-sqlsrv.ini \
    && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*

# Install required extensions
RUN docker-php-ext-install intl mysqli pdo pdo_mysql

Upgrade to actual versions

FROM php:8.4.6-fpm

ENV ACCEPT_EULA=Y

RUN apt-get update && apt-get install -y gnupg libpq-dev libzip-dev

# sql server drivers https://learn.microsoft.com/en-us/sql/connect/odbc/linux-mac/installing-the-microsoft-odbc-driver-for-sql-server?view=sql-server-ver16
RUN curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /usr/share/keyrings/microsoft-prod.gpg && \
    curl https://packages.microsoft.com/config/debian/12/prod.list > /etc/apt/sources.list.d/mssql-release.list && \
    apt-get update && apt-get install -y msodbcsql18 unixodbc-dev && \
    pecl install sqlsrv-5.12.0 && \
    pecl install pdo_sqlsrv-5.12.0 && \
    docker-php-ext-enable sqlsrv pdo_sqlsrv && \
    docker-php-ext-install pdo_mysql pdo_pgsql zip

COPY --from=composer /usr/bin/composer /usr/bin/composer

USER www-data

COPY --chown=www-data:www-data . .

RUN composer install