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Date: Thu, 14 Aug 2003 20:28:06 +0200
To: walt boring <waboring@3gstech.com>
Cc: internals@lists.php.net
Message-ID: <20030814182806.GA25430@prp0.prp.physik.tu-darmstadt.de>
References: <1060813541.901.336.camel@ali> <200308141145.38495.ilia@prohost.org> <3F3BD1D7.70209@3gstech.com>
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Subject: Re: [PHP-DEV] variable_exists() patch
From: swalk@prp.physik.tu-darmstadt.de (Stefan Walk)

On Thu, Aug 14, 2003 at 11:15:51AM -0700, walt boring wrote:
> I for one would like to see something like variable_exists(), as I am 
> very annoyed with
> the logic of isset() returning false if the variable exists and has a 
> value of null. 
[snip] 
>  I for one would much rather do
>  if ( variable_exists($var) ) {}  versus
> if (isset($var) || is_null($var)) {}

When do you need to do that? I can't think of many situations where it
would be neccessary to check if a variable really exists.
-- 
Regards,
Stefan Walk
<swalk@prp.physik.tu-darmstadt.de>