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Date: Thu, 21 Feb 2008 19:32:08 +0100
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Subject: Re: [PHP-DEV] RFC: Traits for PHP
From: mls@pooteeweet.org (Lukas Kahwe Smith)


On 21.02.2008, at 19:09, Andi Gutmans wrote:

> I don't think so. I think the value here is not copy&paste but to be  
> able to encapsulate some functionality which a class can be  
> decorated with. Giving a basic storage mechanism to that would be  
> very beneficial in a large amount of uses. Again, I am proposing  
> private storage only which would be for internal use-only by the  
> decorating methods.

if someone desperately needs that they could just write a method with  
a static variable.

class foo {
     function bar($value = null) {
         if (!isset($var)) {
             static $var = 'bar';
         }
         if (func_num_args() > 0) {
             $var = $value;
         }
         return $var;
     }
}

$foo = new foo();

var_dump($foo->bar());
var_dump($foo->bar('foo'));
var_dump($foo->bar());

ok its a hack .. but you can see how this could work. and you could  
even expand it to handle an arbitrary number of "properties" in a self  
contained method. all you need to do is find a name that doesnt clash.

again i prefer to keep the feature as simple as possible without  
crippeling it the point of not being useful.

>
regards,
Lukas