To be able to run asynchronous code in PHP, a loop needs to run in the background to observe and dispatch events, and handle the resolution of promises.
This repository provides the concepts of a Loop, different Timer implementations and a publish-subscribe model for Event objects.
A loop with three individual timers at 1 second, 5 seconds and 10 seconds.
$timeAtScriptStart = microtime(true); $timer = new IndividualTimer(); $timer->addTriggerTime($timeAtScriptStart + 1); $timer->addTriggerTime($timeAtScriptStart + 5); $timer->addTriggerTime($timeAtScriptStart + 10); $timer->addCallback(function() use($timeAtScriptStart) { $now = microtime(true); $secondsPassed = round($now - $timeAtScriptStart); echo "Number of seconds passed: $secondsPassed", PHP_EOL; }); $loop = new Loop(); $loop->addTimer($timer); echo "Starting...", PHP_EOL; $loop->run();