I am using a library which connects to a remote service. The library will generate a PHP Fatal error / Uncaught ErrorException in case the connection terminates unexpectedly.
My PHP script is running as a daemon (via Systemd), so I would like to automatically restart the daemon after a while to reconnect. All this is setup in Systemd, so if PHP exits with the status 4, the daemon will be restarted after some time.
PHP uses the exit code 255 by default for fatal errors, so I resolved to using a shutdown function similar to the following:
function shutdown() {
// Do a bit of this and that (e.g. assert
// there actually was the relevant error)
exit(4);
}
register_shutdown_function('shutdown');
trigger_error('Test', E_USER_ERROR);
But whatever I try, I cannot influence the exit code in any way. I have not found anything helpful in the documentation.
Is there any known way to manipulate the exit code within a shutdown function or by other means after the fatal error has already been generated?
