PHP Programs

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Program 28: Write a PHP program to print the sum of digits of an integer.

sum_digits.php

<!DOCTYPE html>
<html>
<head>
	<title>PHP Programs TutorialDuniya.com</title>
</head>
<body>
	<?php
		$num = 18543;  
		$sum=0; $remain=0;  

  		for ($i =0; $i<=strlen($num);$i++)  
 		{  
  			$remain=$num%10;  
   			$sum = $sum + $remain;  
   			$num=$num/10;  
  		}  
 		echo "Sum of digits 18543 is $sum";  
 	?>  
</body>
</html>


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