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Message-ID: <32074276-E941-45C8-B1A1-9A6EB34F4D7E@gmail.com>
To: Nathan Rixham <nrixham@gmail.com>
In-Reply-To: <DC.B5.20810.D39232A4@pb1.pair.com>
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Date: Sun, 31 May 2009 20:44:27 -0500
References: <DC.B5.20810.D39232A4@pb1.pair.com>
Subject: Re: [PHP-DEV] need inverted __sleep?
From: shadda@gmail.com (Matt Wilson)

get_class_vars + array_diff

On May 31, 2009, at 8:04 PM, Nathan Rixham wrote:

> Hi All,
>
> hoping somebody can help me here..
>
> I need to implement an inverted __sleep method, by which I mean to  
> specify what variables should not be included.
>
> use case:
> <?php
> class base
> {
>  private $notToBeSerialized;
>
>  public function __sleep()
>  {
>    // TODO code return instance properties excluding  
> $notToBeSerialized
>  }
>
> }
>
> class foo extends base
> {
>  private $bar;
> }
>
> class poo extends foo
> {
>  private $baz;
> }
>
> $p = new poo;
> echo serialize($p);
>
> ----
>
> I've tried using get_object_vars($this), and ReflectionObject($this)  
> both of which don't include all the properties of the instance.
>
> the only way I can see to get all the properties of the instance is  
> to serialize($this) then parse the string, but that's just wrong and  
> what would sleep return on the first call to serialize.
>
> any help greatly appreciated.
>
> regards,
>
> nathan
>
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