(PHP 5 >= 5.3.0, PHP 7, PHP 8)
pcntl_signal_dispatch — Calls signal handlers for pending signals
The pcntl_signal_dispatch() function calls the signal handlers installed by pcntl_signal() for each pending signal.
This function has no parameters.
Returns true
on success or false
on failure.
Example #1 pcntl_signal_dispatch() example
<?phpecho "Installing signal handler...\n";pcntl_signal(SIGHUP, function($signo) { echo "signal handler called\n";});echo "Generating signal SIGHUP to self...\n";posix_kill(posix_getpid(), SIGHUP);echo "Dispatching...\n";pcntl_signal_dispatch();echo "Done\n";?>
The above example will output something similar to:
Installing signal handler... Generating signal SIGHUP to self... Dispatching... signal handler called Done