How's your Mum?
tedd wrote:
Hey:
Didn't anyone like my --
"Whenever I need a 1 or 0, I use ($i & 1)."
-- comment?
I though that was pretty clever, but no one even said "How's your Mum?".
well it's a basic bitwise operation, anyone who has been doing for a while
wouldn't think much of it and people who are not yet aware of bitwise operations
will probably gloss over it.
that said how often do you _really_ need a 1 or a 0, let's assume that your
code has an $i and the code can be certain it's an integer then converting it
to 1 or 0 is not that different to casting to a boolean, I'm assuming that the
1 or 0 are used to detemine an on/off state. is my assumption correct?
if so then take another good look at the way php autocasts variables,
for instance tyr running this:
$zero = 0; $one = 1;
var_dump(
(false == $zero),
(true == $one),
((bool)$zero),
($zero & 1),
((bool)($zero & 1)),
((bool)$one),
($one & 1),
((bool)($one & 1))
);
tedd
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
