dev-master 2019-09-16 17:37 UTC


This package provides tools to run multiple PHP processes that can listen on the same port, such as multiple HTTP server instances listening on port 80. Port-sharing is achieved with SO_REUSEPORT where available and socket transfers otherwise.

Additionally, this package provides a mechanism to gracefully restart such processes with zero downtime.


Instead of starting the processes with php server.php, cluster-enabled applications are started with php vendor/bin/cluster run server.php.

A graceful restart can be initiated by sending a USR1 signal to the cluster process or by executing php vendor/bin/cluster restart server.php.