Re: variable_exists() patch
| From: | Stefan Walk | Date: | Thu, 14 Aug 2003 18:28:06 +0000 |
| Subject: | Re: variable_exists() patch | ||
| References: | 1 2 3 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-3947@lists.php.net to get a copy of this message | ||
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>