note 24379 added to function.round

Here's a function to round to an arbitary number of significant digits. Don't confuse it with rounding to a negative precision - that counts back from the decimal point, this function counts forward from the Most Significant Digit. ex: round(1241757, -3); // 1242000 RoundSigDigs(1241757, 3); // 1240000 Works on negative numbers too. $sigdigs should be >= 0 function RoundSigDigs($number, $sigdigs) { $multiplier = 1; while ($number < 0.1) { $number *= 10; $multiplier /= 10; } while ($number >= 1) { $number /= 10; $multiplier *= 10; } return round($number, $sigdigs) * $multiplier; } -- http://www.php.net/manual/en/function.round.php http://master.php.net/manage/user-notes.php?action=edit+24379 http://master.php.net/manage/user-notes.php?action=delete+24379 http://master.php.net/manage/user-notes.php?action=reject+24379