The mailing-list discussion leading to this feature request.

On Thu, 3 May 2007, Yannick Warnier wrote:

Le jeudi 03 mai 2007 à 09:05 +0200, Derick Rethans a écrit :

On Wed, 2 May 2007, Sean Coates wrote:

Yannick Warnier wrote:

Hello,

I'm using xdebug 2.0.0 RC3. Is there a reason why calls to isset() and
empty() are not reported in traces?

I suspect for the same reason that instanceof and == are not shown in
traces (they're not actual functions).

That is correct, isset() and empty() are language constructs in PHP.

OK, thanks to both.
I suppose the classic way of getting around that (if needs be) is to
write a wrapper function like
function myisset($var){return isset($var);}
which I did and it worked fine (but you have to replace all the isset()
calls by myisset() calls in the script that worries you).

Another possibility would be that I overload those opcodes (if possible)
and expose them as function calls. I am not sure how possible this is
though. Feel free to file a feature request at http://bugs.xdebug.org so
that I can have a look at it for after 2.0 has been released.

regards,
Derick