<"work : {$this->worker->getName()} task : {$total} \n";
    sleep(1);
  }
}

//创建一个worker线程
$work = new Work('a');

$work->start();

for ($i = 1; $i <= 10; $i++) {
  //将Task对象压栈到worker线程中
  //这个时候Task对象就可以使用worker线程上下文(变量，函数等)
  $work->stack(new Task($i));
}

//循环的清理任务，会阻塞主线程，直到栈中任务都执行完毕
while ($work->collect()) ;

//关闭worker
$work->shutdown();

<"work : {$this->worker->getName()} task : {$total} \n";
    sleep(1);
  }
}

//创建二个worker线程
$work1 = new Work('a');
$work2 = new Work('b');

$work1->start();
$work2->start();

for ($i = 1; $i <= 10; $i++) {
  if ($i <= 5) {
    $work1->stack(new Task($i));
  } else {
    $work2->stack(new Task($i));
  }
}

//循环的清理任务，会阻塞主线程，直到栈中任务都执行完毕
while ($work1->collect() || $work2->collect()) ;

//关闭worker
$work1->shutdown();
$work2->shutdown();

<"select * from tb_user where id = {$this->id}");
    $this->result = $ret->fetch(PDO::FETCH_ASSOC);
    //访问worker中的成员变量msg
    echo "data : {$this->result['id']} {$this->result['name']} \t worker data : {$this->worker->msg} \n";
  }
}

//创建一个worker线程
$work = new DB();

$work->start();

for ($i = 1; $i <= 5; $i++) {
  $work->stack(new Task($i));
}

//循环的清理任务，会阻塞主线程，直到栈中任务都执行完毕
while ($work->collect()) ;

//关闭worker
$work->shutdown();

<"work id : {$this->worker->getId()} task : {$total} \n";
  }
}

//创建pool，可容纳3个work对象
$pool = new Pool(3, 'Work', [new Id()]);

//循环的把20个task线程提交到pool中的work对象上运行
for ($i = 1; $i <= 20; $i++) {
  $pool->submit(new Task($i));
}

//循环的清理任务，会阻塞主线程，直到任务都执行完毕
while ($pool->collect()) ;

//关闭pool
$pool->shutdown();