Why won't this palindrome code run

This is my code,

$num = 37;
$rev = 0;
$times = 0;

while ($num != $rev){
 if ($num == $rev){
 echo $num . ' ' . $times;
 }
 else
 {
  $rev=($rev *10)+($num % 10);
  $num=(int)($num / 10 );
  $times++; 
}
}

PHP:

I want it to get a number, $num, and then reverse it. I then want to add the numbers together. I want to keep doing this until I get a palindrome number.

The output should print out, the palindrome number and the number of times, $times, it took to get it separated by a space.

Thanks

 

<?php
$maxTries = 255; //in case this results in a long-running loop

$number = 37;

$string = '';
$reverse = 0;
$tries = 0;
$found = false;

do {
$string = strval($number);
$reverse = strrev($string);
$reverse = intval($reverse);

if($number===$reverse)
  $found = true;
else {
  ++$tries;
  $number += $reverse;
}
} while($tries<$maxTries && !$found);

if($found)
echo $number,' ',$tries;
else
echo 'Try limit exceeded.';

Code (markup):

It should work, but I haven't tested it.

 

while ($num != $rev){
 if ($num == $rev){

Code (markup):

do we see a problem here?!?

 

I was so focused on the bottom part being wrong, I didn't even notice that!