Get the sum of digits in PHP

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How do I find the sum of all the digits in a number in PHP?

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13条回答

一生所求

2020-11-29 11:22
If interested with regex:
```
array_sum(preg_split("//", $number));
```
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夕颜

2020-11-29 11:28
One way of getting sum of digit however this is a slowest route.
```
$n=123;
while(($n=$n-9)>9);
echo "n: $n";
```
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被撕碎了的回忆

2020-11-29 11:30

Here's the code.. Please try this

   <?php 
    $d=0;
   $num=12345;

   $temp=$num;

   $sum=0;

   while($temp>1)

     {
      $temp=$temp/10;

        $d++;
         }

     echo "Digits Are : $d </br>";

      for (;$num>1;)

             {
              $d=$num%10;

             $num=$num/10;

             $sum=$sum+$d;

             }

           echo "Sum of Digits is : $sum";

   ?>

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走了就别回头了

2020-11-29 11:34

Try the following code:

<?php

$num = 525;
$sum = 0;

while ($num > 0)
{
    $sum= $sum + ($num % 10);
    $num= $num / 10;
}
echo "Summation=" . $sum;

?>

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慢半拍i

2020-11-29 11:38

<?php 
// PHP program to calculate the sum of digits 
function sum($num) { 
    $sum = 0; 
    for ($i = 0; $i < strlen($num); $i++){ 
        $sum += $num[$i]; 
    } 
    return $sum; 
} 

// Driver Code 
$num = "925"; 
echo sum($num); 
?>

Result will be 9+2+5 = 16

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孤独总比滥情好

2020-11-29 11:38

<html>
<head>
<title>detail</title>
</head>
<body>
<?php
$n = 123;
$sum=0; $n1=0;

  for ($i =0; $i<=strlen($n);$i++)
 {

  $n1=$n%10;

   $sum += $n1;
   $n=$n/10;
  }
 echo $sum;

 ?>
 </body>
</html>

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