## Q. PHP Program to Find the Sum of Digits in a Given Number.

Here you will find an algorithm and program in PHP to find the sum of digits in number. Now let us understand this.

Explanation : Suppose we are having number 12548 and we have to calculate the sum of digits in the given number, so here we have the following digits 1, 2, 5, 4, 8 and we will sum all these digits -> 1 + 2 + 5 + 4 + 8 and the result we get is 20 that will be our output.

## Sum Of Digits Algorithm

```START
Step 1: Get number by user
Step 2: Get the modulus/remainder of the number
Step 3: sum the remainder of the number
Step 4: Divide the number by 10
Step 5: Repeat the step 2 while number is greater than 0.
STOP
```

# PHP Program to Find the Sum Of Digits in Number

```function sum_digit(\$num)
{
\$sum = 0;
\$rem=0;
while (\$num != 0)
{
\$rem=\$num%10;
\$num = \$num / 10;
\$sum=\$sum+\$rem;
}
return \$sum;
}

\$num = 123456;
echo "Sum Of Digits : "
. sum_digit(\$num);
```

#### Output

```Sum Of Digits : 21
```