Re: change color

Yup. It's called the ternary conditional operator. Handly wee bastard, if i do say so myself ;). Check out http://php.net/manual/en/language.operators.comparison.php for details. http://php.net/manual/en/language.operators.arithmetic.php for stuff on modulus (%) operator On Monday 26 May 2003 08:43 pm, David Otton wrote: > On Mon, 26 May 2003 23:01:25 -0400, you wrote: > >This was a question I've been kicking around myself. But Evan's answer > >is a bit confusing to me, can someone clear it up? Evan, can you explain > >it a bit better? Maybe show how it is supposed to look in the overall > > code? > > Breaking it down slightly, compared to the other replies you've received: > > You start by labeling each row (1, 2, 3, 4, etc). Odd-numbered rows we > colour white, even-numbered rows we colour green. > > We already have a convenient label for our rows (the variable $i in the > original example), we just have to decide when it's odd and when it's even. > > Even numbers are divisible exactly by 2, odd numbers leave a remainder. > > To find the remainder after a division, we use the mod (%) operator. > > 2 % 2 = 0 > 3 % 2 = 1 > 4 % 2 = 0 > 5 % 2 = 1 > etc. > > if ($i % 2 == 1) { > echo ("white"); > } else { > echo ("green"); > } > > The ?: stuff is just short-hand for if/else. -- Any belief worth having must survive doubt. -Unknown