强制访问__PHP_Incomplete_Class对象属性 [英] forcing access to __PHP_Incomplete_Class object properties

问题描述

我正在为php cms编写一个模块.在函数(回调)中，我可以访问来自框架代码的对象.

I'm writing a module for a php cms. In a function (a callback) I can access an object that comes from the framework code.

此对象的类型为__PHP_Incomplete_Class，因为在会话开始之前不包括所需的头文件.如果不破解核心的cms代码，我将无法包含它.

This object is of type __PHP_Incomplete_Class because the needed header file is not included before the session starts. I cannot include it without hacking the core cms code.

我想知道是否仍然可以访问对象属性(无法广播到数组).我问这个问题是因为我可以用var_dump()看到值，但是使用$object->var总是得到空值.

I wonder if is possibile to access the object properties anyway (casting to array does not work). I ask this because I can see the values with var_dump() but using $object->var I always get nulls.

推荐答案

当您取消序列化尚未包含的类的对象时，将出现此问题. 例如，如果您在加入该类之前调用​​session_start.

This issue appends when you un serialize an object of a class that hasn't been included yet. For exemple, if you call session_start before include the class.

不能直接访问PHPIncompleteClass对象，但是可以使用foreach，serialize和gettype. 用PHPIncompleteClass对象调用is_object将导致错误.

A PHPIncompleteClass object can't be accessed directly, but it's ok with foreach, serialize and gettype. Calling is_object with an PHPIncompleteClass object will result false.

因此，如果在会话中找到"__PHP_Incomplete_Class"对象，并且在session_load之后包含了类，则可以使用以下功能:

So, if you find a '__PHP_Incomplete_Class' object in your session and you've included your class after the session_load, you can use this function :

function fixObject (&$object)
{
  if (!is_object ($object) && gettype ($object) == 'object')
    return ($object = unserialize (serialize ($object)));
  return $object;
}

这将产生可用的对象:

fixObject($_SESSION['member']);

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