reverse number using php

<?php
 $number = 1234;
                $reversedNumber = 0;
                $temp = 0;
              
                while($number > 0){
                      
                        //use modulus operator to strip off the last digit
                        $temp = intval($number%10);
                      
                        //create the reversed number
                        $reversedNumber = ($reversedNumber * 10 + $temp);
                       $number = intval($number/10);
                        
                }
              
                //output the reversed number
                echo("Reversed Number is: " + $reversedNumber);