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To: internals@lists.php.net,Matt Wilson <shadda@gmail.com>
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Subject: Re: [PHP-DEV] need inverted __sleep?
From: nrixham@gmail.com (Nathan Rixham)

matt.. that's public properties on a single class - see the usecase

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);


Matt Wilson wrote:
> mwilson@MattW-Mac:~$ php -r 'class a { public $a, $b, $c, $d; public 
> function __sleep() { return array_diff( array_keys( (array) $this), 
> array("b","c")); } } $a = new a; var_dump($a->__sleep());'
> array(2) {
>   [0]=>
>   string(1) "a"
>   [3]=>
>   string(1) "d"
> }
> 
> On May 31, 2009, at 8:46 PM, Nathan Rixham wrote:
> 
>> Matt Wilson wrote:
>>> get_class_vars + array_diff
>>
>> cheers but nope; as the manual says
>> "Returns an associative array of default public properties of the class"
>>
>> need private and inherited private
>>
>>> 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
>>>>
>>>> -- 
>>>> PHP Internals - PHP Runtime Development Mailing List
>>>> To unsubscribe, visit: http://www.php.net/unsub.php
>>>>
>>
>