..warning::

Internally, the HttpKernel makes use of the:phpfunction:`fastcgi_finish_request`

PHP function. This means that at the moment, only the `PHP FPM`_server

API is able to send a response to the client while the server's PHP process

PHP function. This means that at the moment, only the `PHP FPM`_API and the

`FrankenPHP`_ server are able to send a response to the client while the server's PHP process

still performs some tasks. With all other server APIs, listeners to ``kernel.terminate``

are still executed, but the response is not sent to the client until they

are all completed.

.. _FOSRestBundle:https://github.com/friendsofsymfony/FOSRestBundle

.. _`PHP FPM`:https://www.php.net/manual/en/install.fpm.php

.. _variadic:https://www.php.net/manual/en/functions.arguments.php#functions.variable-arg-list

.. _`FrankenPHP`:https://frankenphp.dev