At 11:52 AM +0100 12/7/09, Merlin Morgenstern wrote:
Hello everybody,
I am having trouble finding a logic for following problem:
Should be true if:
page = 1 OR page = 3, but it should also be true if page = 2 OR page = 3
The result should never contain 1 AND 2 in the same time.
This obviously does not work:
(page = 1 OR page = 3) OR (page = 2 OR page = 3)
This also does not work:
(page = 1 OR page = 3 AND page != 2) OR (page = 2 OR page = 3 AND page != 1)
Has somebody an idea how to solve this?
Thank you in advance for any help!
Merlin
Merlin:
The variable "page" cannot hold two values at the same time and thus
your statement "The result should never contain 1 AND 2 in the same
time" is nonsense.
Now if you are working two variables, namely $a and $b and you want
an algorithm to solve your problem, it's simple.
if ($a + $b > 3)
{
$result = true;
}
else
{
$result = false;
}
Cheers,
tedd
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