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Date: Wed, 28 Jan 2009 17:41:43 +0000
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To: "Nathanael D. Noblet" <nathanael@gnat.ca>
CC: Peter Walther <p.walther@pewasoft.com>, internals@lists.php.net
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	Content preview:  Nathanael D. Noblet wrote: > Peter Walther wrote: > > it's
	only a bug if you always expect optional NULL parameters to be >> ignored.
	> > Well that's the question I'm asking. I assumed optional parameters >
	passed null should be ignored. If this isn't the behaviour php uses, > then
	I'm good, but I've used passing null to optional params all over > the place,
	and just recently had this one not work. If my logic / > assumptions are
	flawed, that's fine otherwise I can file a bug. > [...] 
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Subject: Re: [PHP-DEV] substr passing null...
From: scott@macvicar.net (Scott MacVicar)

Nathanael D. Noblet wrote:
> Peter Walther wrote:
>  > it's only a bug if you always expect optional NULL parameters to be
>> ignored.
> 
> Well that's the question I'm asking. I assumed optional parameters
> passed null should be ignored. If this isn't the behaviour php uses,
> then I'm good, but I've used passing null to optional params all over
> the place, and just recently had this one not work. If my logic /
> assumptions are flawed, that's fine otherwise I can file a bug.
> 

You're assumption is wrong then, NULL isn't treated as not passing a
value. The reason it worked with substr was by pure chance.

Scott