创建在yii2中扩展线程的自定义类

Question

如何创建自定义类而不是扩展组件类？

课程:

 namespace common\components;

 class AsyncOperation extends Thread {

  public function __construct($arg) {
    $this->arg = $arg;
}

public function run() {
    if ($this->arg) {
        $sleep = mt_rand(1, 10);
        printf('%s: %s  -start -sleeps %d' . "<br />", date("g:i:sa"),     $this->arg, $sleep);
        sleep($sleep);
        printf('%s: %s  -finish' . "<br />", date("g:i:sa"), $this->arg);
      }
   }

}

yii2控制器:

   public function actionTest() {
  // Create a array
    $stack = array();

//Iniciate Miltiple Thread
    foreach (range("A", "D") as $i) {
        $stack[] = new AsyncOperation($i);
    }

    // Start The Threads
    foreach ($stack as $t) {
        $t->start();
    }
}

错误:

 PHP Fatal Error – yii\base\ErrorException
Class 'common\components\Thread' not found

这个类在纯PHP应用程序中运行完美
而且安装了Pthread!

Answer 1

Extends Something表示Something在当前名称空间中搜索的类.\Something表示在根命名空间中搜索的类.请参阅命名空间的基础知识.

您common\components\Thread的common\components命名空间中没有类.在你的情况下使用class AsyncOperation extends \Thread {