function _ad_weight_probability_gcd in Advertisement 7

Same name and namespace in other branches

1. 5.2 weight/probability/ad_weight_probability.inc \_ad_weight_probability_gcd()
2. 6.3 weight/probability/ad_weight_probability.inc \_ad_weight_probability_gcd()
3. 6.2 weight/probability/ad_weight_probability.inc \_ad_weight_probability_gcd()

Helper function to calculate the greatest common divisor using the Euclidean algorithm (http://en.wikipedia.org/wiki/Euclidean_algorithm).

1 call to _ad_weight_probability_gcd()

ad_weight_probability_gcd in weight/probability/ad_weight_probability.inc

Returns the greatest common divisor of an array of integers.

File

weight/probability/ad_weight_probability.inc, line 49

A plug in for the ad.module, allowing an admin to set the probability that a given advertisement will be displayed.

Code

function _ad_weight_probability_gcd($a, $b) {
  if ($b == 0) {
    return $a;
  }
  else {
    return _ad_weight_probability_gcd($b, $a % $b);
  }
}