Question

我有一个聊天板,它将一些数据节省到用户正在发送的 d。在向用户发出回复之后,我想将其节省下来(网络呼吁缓慢)。

我可以在“旋风”中这样做,但我原能这样做。

用户将投入作为要求——“和”;我们处理——“和”;我们把产出作为回应发送用户;,我们希望储存数据。

  class A
  {
      function __construct()
        {
          echo "Hello World";
        }
      function __destruct()
        {
          sleep(15); //I want this to happen after response is being send
        }
      function calc()
        {
          echo "Progress World";
        }
  }

Answer 1

www.un.org/Depts/DGACM/index_french.htm 如果该笔文字通常终止,但被杀,那么根本不能叫 des。

如果你只是想在具体地点完成清理工作,并确保处理工作时使用PHP.5-introduced finallyarticle

www.un.org/Depts/DGACM/index_spanish.htm 例如,PHP网站:

<?php
class my_class {
  public $error_reporting = false;

  function __construct($error_reporting = false) {
    $this->error_reporting = $error_reporting;
  }

  function __destruct() {
    if($this->error_reporting === true) $this->show_report();
    unset($this->error_reporting);
  }
?>

见。 PHP Document on destructors. 我希望这一帮助。

Answer 2

PHP s garbage collector and object destruction are automatic processes managed by the runtime, so you don t have direct control over when destructors are called. You can add your cleanup function in finally block of exception handling.

try{
 // your code
}catch(Exception $e){
 // exception handling
}finally{
 //perform cleanup task or destructor here
}

友情链接