Php Armstrong Number

Armstrong Number
An Armstrong number is the one whose value is equal to the sum of the cubes of its digits.

0, 1, 153, 371, 407, 471, etc are Armstrong numbers.

For example,

407 = (4*4*4) + (0*0*0) + (7*7*7)
= 64 + 0 + 343
407 = 407

Logic:

Take the number.
Store it in a variable.
Take a variable for sum.
Divide the number with 10 until quotient is 0.
Cube the remainder.
Compare sum variable and number variable.
Armstrong number in PHP

Below program checks whether 407 is Armstrong or not.

Example:

<?php
$num=407;
$total=0;
$x=$num;
while($x!=0)
{
$rem=$x%10;
$total=$total+$rem*$rem*$rem;
$x=$x/10;
}
if($num==$total)
{
echo “Yes it is an Armstrong number”;
}
else
{
echo “No it is not an armstrong number”;
}
?>

Logic