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Date: Wed, 13 Sep 2006 16:47:45 -0500
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Subject: Re: [PHP-DEV] Return type hints
From: brianm@dealnews.com (Brian Moon)

> --- Start ---
> 
> class Something
> {
>   public function __construct()
>   {
>     // Oops, forgot to initialise $this->something...
>   }
> 
>   public function f()
>   {
>     return $this->something;
>   }
> 
>   private $something;
> }
> 
> 
> error_reporting(E_ALL);
> 
> $something=new Something;
> 
> echo $something->f()+10; // Prints "10".

If you can't trust the return values of your methods, I would use:

$var = $something->f();

if($var!==NULL){
     echo $var+10; // Prints "10".
}

However, its crap like this that reminds me why I don't use PHP OOP for 
all my code.  I can find no non-OOP code that behaves this way.  Even my 
favorite PHP trick, using settype() to initialize vars, does not set the 
var to NULL.

-- 

Brian Moon
-------------
http://dealnews.com/
Its good to be cheap =)