PHP

sum of digits

num = [int(d) for d in input("Enter the Number:")]
sum = 0
for i in range(0, len(num)):
    sum = sum + num[i]

print("Sum of Digits of a Number: {}".format(sum))

# This code is contributed by Shubhanshu Arya (Prepinsta Placement Cell Student) 

sum digits of number

var value = 2568,
    sum = 0;

while (value) {
    sum += value % 10;
    value = Math.floor(value / 10);
}

console.log(sum);

Code of getting sum of digits

<?php
    
    $num = 3434654567;
    $rem = 0;
    $sum = 0;
    for($i = 0; $i <= strlen($num); $i++) {
      $rem = $num % 10;
      $sum = $sum + $rem;
      $num = $num/10;
    }
    echo "Sum of digits is $sum";
    
  ?>