int pcntl_alarm(int $seconds)
Creates a timer that will send a
SIGALRM signal to the process after the given number of seconds. Any call to pcntl_alarm() will cancel any previously set alarm.
Returns the time in seconds that any previously scheduled alarm had remaining before it was to be delivered, or 0 if there was no previously scheduled alarm.
- int $seconds: The number of seconds to wait. If
secondsis zero, no new alarm is created.