Re: Apache::Request and parameters = 0

[Dana C. Chandler III]

Matt Sergeant wrote:
> 
> On Thu, 5 Oct 2000, Dana C. Chandler III wrote:
> 
> > In my limited experience, it is Perl in general that treats the value 0,
> > in a query string as the empty string.  In all of the scripts I have
> > written, if 0 is possible as a param value, I have to explicity check
> > for 0.
> 
> This is only the case when you're going:
> 
> if ($r->param('name')) {
>         # do something
> }
> 
> if its a zero then you should expect to be bitten in the ass by that
> one. However I do assume that there's similar code going on somewhere to
> turn the zero into undef.
> 
> --
> <Matt/>
> 
> ** Director and CTO **
> **  AxKit.com Ltd   **  ** XML Application Serving **
> ** http://axkit.org **  ** XSLT, XPathScript, XSP  **
> **     Personal Web Site: http://sergeant.org/     **

Yes, in particular,

$value = $r->param('name') || "";

this little snipit of code will bite you if the param is 0.

I should have been more specific.

--Dana