(PECL pthreads >= 2.0.0)
Pool::shutdown — Shutdown all workers
Shuts down all of the workers in the pool. This will block until all submitted tasks have been executed.
У цієї функції немає параметрів.
Не повертає значень.
Приклад #1 Shutting down a pool
<?php
class Task extends Threaded
{
    public function run()
    {
        usleep(500000);
    }
}
$pool = new Pool(4);
for ($i = 0; $i < 10; ++$i) {
    $pool->submit(new Task());
}
$pool->shutdown(); // blocks until all submitted tasks have finished executing