note 27933 added to function.number-format

In this function... How can I round decimals to get the final result at Kilometers per hour from Miles per hour WITHOUT so many decimals and keeping the precision? function convertSpeed($mph,$metric) { if (!$mph) return(false); if (strtolower($metric) == "mph") return($mph); if (strtolower($metric) == "kph") return($mph * 1.609344); } Another example is from Fahrenheit to Celsius... function convertTemp($fTemp,$metric) { if (!$fTemp) return(false); if (!doubleval($fTemp)) return($fTemp); if (strtolower($metric) == "f") return($fTemp); if (strtolower($metric) == "c") return(($fTemp - 32) * 5/9); } Some idea to round the final number? Thanks. -- http://www.php.net/manual/en/function.number-format.php http://master.php.net/manage/user-notes.php?action=edit+27933 http://master.php.net/manage/user-notes.php?action=delete+27933 http://master.php.net/manage/user-notes.php?action=reject+27933