swoole协程通道channel

Co\run(function(){
    $chan = new Swoole\Coroutine\Channel(1);
    Swoole\Coroutine::create(function () use ($chan) {
        for($i = 0; $i < 100000; $i++) {
            co::sleep(1.0);
            $chan->push([‘rand‘ => rand(1000, 9999), ‘index‘ => $i]);
            echo "$i\n";
        }
    });
    Swoole\Coroutine::create(function () use ($chan) {
        while(1) {
            $data = $chan->pop();
            var_dump($data);
        }
    });
});