Reverse number Program in PHP

Reverse number Program in PHP

strrev() function is used to reverse any given number in php, but here we perform this operation without using strrev() function and using strrev() function.

<?php

$num = 2039;
$revnum = 0;
while ($num != 0)
{
$revnum = $revnum * 10 + $num % 10;
//below cast is essential to round remainder towards zero
$num = (int)($num / 10); 
}
 
echo "Reverse number: $revnum";

?>

	
Reverse number: 9302

<?php

function reverse_number($number)
{
    
   /* Typecast the number into string. */
 
    $snum = (string) $number;
 
    /* Reverse the string. */
 
    $revstr = strrev($snum);
 
    /* Typecast string into int. */
 
    $reverse = (int) $revstr;
 
     return $reverse;
}
 
 echo reverse_number(2039);

?>

	
9302