crocodile2u/php-embed repository overview

Dockerfile⁠

Official PHP docker images lack the embed SAPI which is needed for Nginx Unit⁠, for example. Building your own image based on Alpine with Nginx Unit and PHP-7.4 is somewhat tricky because 7.4 is only available in APK repos for the edge version of Alpine, 7.3 being the latest available PHP version for Alpine 3.12.

While there is an ongoing discussion⁠ in the official PHP docker repository, you can use these images which obviously work exactly in the same way as official PHP CLI images but in addition provide the embed SAPI for you to compile Nginx Unit against.