It depends on the configuration. One can set pm.max-requests=1 and have the process respawn per request. https://www.php.net/manual/en/install.fpm.configurati

It depends on the configuration. One can set pm.max-requests=1 and have the process respawn per request. https://www.php.net/manual/en/install.fpm.configuration.php#pm.max-requests https://www.php.net/manual/en/install.fpm.configuration.php#... And the main point still stands: If a request manages to crash a php-fpm child process, other requests are unaffected and another process is spawned to replace the crashed one.