Choose PHP-FPM when an existing web server needs a FastCGI runtime and review matching application paths. Choose the Workerman example only for an event-driven application that needs this old dependency line.
Choose by symptom
PHP 7.2 is unsupported; a container does not restore security support. Workerman copies app code into the image and mounts only logs. A completion banner or a sample HTTP response is not a business-health check; inspect the separate rebuild and readiness guides.