Question

How to reverse a number in PHP

Answer 1

function reverseNumber($n) {
    $reverse = 0;
  
    while ($n != 0) {
        $reminder = $n % 10;
        $reverse = $reverse * 10 + $reminder;
        $n = (int)($n / 10);
    }

    return $reverse;
}
 
     
$n = 9708;
 
echo reverseNumber($n);
 
 
 
 
 
/*
run:
  
8079
  
*/

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