PHP Asynchronous programming Using Icicle event loop
Example
Icicle uses Awaitables and Generators to create Coroutines.
require __DIR__ . '/vendor/autoload.php';
use Icicle\Awaitable;
use Icicle\Coroutine\Coroutine;
use Icicle\Loop;
$generator = function (float $time) {
try {
// Sets $start to the value returned by microtime() after approx. $time seconds.
$start = yield Awaitable\resolve(microtime(true))->delay($time);
echo "Sleep time: ", microtime(true) - $start, "\n";
// Throws the exception from the rejected awaitable into the coroutine.
return yield Awaitable\reject(new Exception('Rejected awaitable'));
} catch (Throwable $e) { // Catches awaitable rejection reason.
echo "Caught exception: ", $e->getMessage(), "\n";
}
return yield Awaitable\resolve('Coroutine completed');
};
// Coroutine sleeps for 1.2 seconds, then will resolve with a string.
$coroutine = new Coroutine($generator(1.2));
$coroutine->done(function (string $data) {
echo $data, "\n";
});
Loop\run();
