Write a program in PHP to reverse a number?

The program in PHP to reverse a number is :

<?php  

$num = 79658;  

$revnum = 0;  

while ($num > 1)  

{  

$rem = $num % 10;  

$revnum = ($revnum * 10) + $rem;  

$num = ($num / 10);   

}  

echo "Reverse number of 79658 is: $revnum";  

?>