$fromChangeConvertor->to("ft"); //returns converted value in feet $fromChangeConvertor->from(5.23,"km"); //sets new from value in new unit $fromChangeConvertor->to("mi"); //returns converted new value in miles</pre> <?php $fromChangeConvertor = new Convertor(10, "m"); ?> <p>10 Meters = <?php echo $fromChangeConvertor->to("ft"); ?> Feet</p> <?php $fromChangeConvertor->from(5.23, "km"); ?> <p>5.23 Kilometers = <?php echo $fromChangeConvertor->to("mi"); ?> Miles</p> </section> <section> <header>Result Precision</header> <p>The precision of the results can be set using two optional paramerters in the to() function to specify the decimal precision and use of rounding.</p> <pre>$precisionConvertor->to("ft", 4, true);</pre> <p>The second parameter specifies the decimal precision of the result, the thir parameter indicates weather the result syhould be rounded (true, default value) or truncated (false).</p> <?php