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Date: 14 Aug 2003 15:33:35 -0400
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Subject: Re: [PHP-DEV] Re: variable_exists() patch
From: robert@wocmud.org (Robert Cummings)

Actually isset() doesn't behave as it should:

    $foo = null;
    echo isset( $foo );

In the above it should return true, but doesn't because it considers
null to be not set. Thus it is flawed since I explicitly set it to null.
Understandably this is documented; however, the issue here is whether a
variable_exists() function should be added -- for which I am +1 for
adding it :)

Cheers,
Rob.


On Thu, 2003-08-14 at 15:30, Ilia Alshanetsky wrote:
> On August 14, 2003 03:11 pm, walt boring wrote:
> > exactly why isset() is either
> > 1) a bad name for the function or
> > 2) 'broken'
> 
> Wrong. isset() has a very proper name "is-set", which to me and other people 
> says that it will see if a variable is set (has a value). It does this job 
> admirably and it certainly not broken. Documentation specifies how this 
> function will perform perfectly.
> 
> Ilia
> 
> 
> -- 
> PHP Internals - PHP Runtime Development Mailing List
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> 
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