Digits sum of any number
To find the sum of the digits of a number, simply add all the digits.
Math Example
Random Number – 12345
Addition of digits – 1+2+3+4+5
Total – 15
PHP Program – Calculate the sum of digits
<?php
$number = 12345;
$sum=0;
$reminder=0;
for ($i =0; $i<=strlen($number);$i++)
{
$reminder=$number%10;
$sum = $sum + $reminder;
$number=$number/10;
}
echo “Digits sum of number 12345 is $sum”;
?>
Output
Digits sum of number 12345 is 15