PHP Exercises: Compute the sum of the digits of a number

PHP: Exercise-45 with Solution

Write a PHP program to compute the sum of the digits of a number.

Sample Solution: -

PHP Code:

function sum_of_digits($nums) {
    $digits_sum = 0;
      for ($i = 0; $i < strlen($nums); $i++) {
             $digits_sum += $nums[$i];
      return $digits_sum;
echo sum_of_digits("12345")."\n";
echo sum_of_digits("9999")."\n";

Sample Output:



Flowchart: Swap two variables

PHP Code Editor:

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PHP: Tips of the Day

Returns all elements in an array except for the first one


function tips_tail($items)
  return count($items) > 1 ? array_slice($items, 1) : $items;

print_r(tips_tail([1, 5, 7]));


    [0] => 5
    [1] => 7