» google_pagerank()
  » preg_replace()
  » imagecreatefrompng()
  » site_pageranks()
  » imagepng()
  » imagedestroy()
  » imagestring()
  » imagecolorallocate()
  » htmlentities()
  » preg_match()
  » fopen()
  » header()
  » getimagesize()
  » preg_match_all()
  » session_start()
  » htmlspecialchars()
  » ob_start()
  » ob_flush()
  » strstr()
  » flush()
  » strpos()
  » setcookie()
  » str_replace()
  » array2vars()
  » nl2br()
  » preg_split()
  » ereg()
  » ereg_replace()
  » urlencode()
  » readgzfile()

Become a sponsor for $15/month. Link is sitewide - PR5 homepage, 20+ PR4 pages, 90+ PR3 pages. Email dave[AT]icemelon[D0T]c0m.

(PHP 4 >= 4.0.4, PHP 5)

gmp_gcd -- Calculate GCD

Description

resource gmp_gcd ( resource a, resource b )

Calculate greatest common divisor of a and b . The result is always positive even if either of, or both, input operands are negative.

Example 1. gmp_gcd() example

<?php
$gcd = gmp_gcd("12", "21");
echo gmp_strval($gcd) . "\n";
?>

The printout of the above program will be:

3