<?php
use Swoole\Coroutine as co;
class T
{
    function __construct()
    {

    }

    function test()
    {
        echo "call function \n";
    }

    function __destruct()
    {
        go(function () {
            echo "coro start\n";
            co::sleep(1.0);
            echo "coro exit\n";
        });
        echo "111\n";
    }
}

$t = new T();
$t->test();
echo "end \n";