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Write a PHP program to print sum of digits.

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  1. <?php  
  2. $num = 14597;  
  3. $sum=0; $rem=0;  
  4.   for ($i =0; $i<=strlen($num);$i++)  
  5.  {  
  6.   $rem=$num%10;  
  7.    $sum = $sum + $rem;  
  8.    $num=$num/10;  
  9.   }  
  10.  echo "Sum of digits 14597 is $sum";  
  11.  ?>  

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