>$a = 1;
>$b = 2;
>$d = 4;
>
>$play_nice = isSet($a, $b, $c, $d);
>
>if (!$play_nice) {
> print "The variable missing is in position ";
> print ($play_nice*-1);
>}
>
>And it would print 3, in which case we would know $c is not set. I'm not
>that sure about this approach, seems like a hack,
It is a hack - what if $a AND $c were unset. You really need to return an
arbitrary length bitfield, with one bit for each arg. Then the sensible name
for the function would be isunset!
That said, I think the whole idea is bad. I appreciate the reduced number of
keypresses involved, but I don't think that this is a feature you can apply
orthogonally to the rest of the language without serious repercussions, and
therefore it would not posses the desirable attribute that you would be able
to guess that isset worked this way.
Hence my vote:
(X) don't make sweeping changes to language functionality without fully
considering the repercussions.
Cheers
--
Phil Driscoll
Dial Solutions
+44 (0)113 294 5112
http://www.dialsolutions.com
http://www.dtonline.org
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