(PECL sync >= 1.0.0)
SyncEvent::fire — Fires/sets the event
Fires/sets a SyncEvent object. Lets multiple threads through that are waiting
if the event object was created with a manual value of true.
此函数没有参数。
成功时返回 true， 或者在失败时返回 false。
Example #1 SyncEvent::fire() example
<?php
// In a web application:
$event = new SyncEvent("GetAppReport");
$event->fire();
// In a cron job:
$event = new SyncEvent("GetAppReport");
$event->wait();
?>