Question

How to find the largest digit in a number with PHP

Answer 1

$num = 73812;

$largest = 0;
 
while ($num > 0) {
    $remider = $num % 10;
    if ($largest < $remider) {
        $largest = $remider;
    }
    $num /= 10;
}
     
echo $largest;



  
/*
run:
  
8
  
*/

 

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