Mod / divisible nums..

• morphinelips

  I have an auction program that has a minimum increment, which could be something like 0.1. I want to know whether a bid of 45.5 or a bid of 45.55 is valid, and evenly divides into my minimum increment. I thought this would be a simple mod calculation, but mod dosn't work for non integers.
  I have an alternate solution, and this doesn't work either:

  $mod = is_int(45 / .1);
  echo " -- $mod"

  >--

  $mod = is_int(45 / 1);
  echo " -- $mod"

  >-- 1

  Baaaaah!! The first one should return one as well..

  Anyone know a solution to this problem?

  morphinelips

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