Question

How to sort the digits of a number in descending order with PHP

Answer 1

$n = 28317;
 
$s = (string)$n; 
$arr = str_split($s);
rsort($arr);
$s = implode($arr);
 
$n = (int)$s;
 
echo $s;
  
  
  
  
/*
run:
  
87321
  
*/

 

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