Is there a set time out equivalent in php?

Question

Is there a PHP equivalent to setting timeouts in JavaScript?

In JavaScript you can execute code after certain time has elapsed using the set time out function.

Answer 1

This is ugly, but basically works:

 $seconds)
    {
      if ($max && $n == $max) break;
      ++$n;

      $last += $seconds;
      $callback();
    }

    $busy = false;
  });
}

function setTimeout($callback, $ms)
{
  setInterval($callback, $ms, 1);
}

// user code:

setInterval(function() {
  echo microtime(true), "\n";
}, 100); // every 10th of a second

while (true) usleep(1);

The interval callback function will only be called after a tickable PHP statement. So if you try to call a function 10 times per second, but you call sleep(10), you'll get 100 executions of your tick function in a batch after the sleep has finished.

Note that there is an additional parameter to setInterval that limits the number of times it is called. setTimeout just calls setInterval with a limit of one.

It would be better if unregister_tick_function was called after it expired, but I'm not sure if that would even be possible unless there was a master tick function that monitored and unregistered them.

I didn't attempt to implement anything like that because this is not how PHP is designed to be used. It's likely that there's a much better way to do whatever it is you want to do.