Question

How to recursively count the digits of a number in PHP

Answer 1

function count_digits($n) {
    static $counter = 0;
 
    if ($n != 0) {
        $counter++;
        count_digits((int)$n/10);
    }
 
    return $counter;
}
   
$n = 681359;
     
echo count_digits($n);


   
/*
run:
        
7
       
*/

 

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