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# PHP program to check whether given number is palindrome or not

Here, we are implementing a **PHP program that will check whether a given integer number is palindrome or not**.

Submitted by **IncludeHelp**, on January 03, 2018

**Given a number and we have to check whether it is palindrome or not using PHP program.**

## Palindrome number

A number which is equal to its reverse number is said to be a palindrome number.

**Example:**

**Input:**
Number: 12321
**Output:**
It is palindrome number
**Explanation:**
Number is 12321 and its reverse number is 12321,
both are equal. Hence, it is a palindrome number.

**Program:**

<?php
//function: isPalindrome
//description
function isPalindrome($number){
//assign number to temp variable
$temp = $number;
//variable 'sum' to store reverse number
$sum = 0;
//loop that will extract digits from the last
//to make reverse number
while(floor($temp)){
$digit = $temp % 10;
$sum = $sum*10 + $digit;
$temp = $temp/10;
}
//if number is equal to its reverse number
//then it will be a palindrome number
if($sum == $number)
return 1;
else
return 0;
}
//Main code to test above function
$num = 12321;
if(isPalindrome($num))
echo($num . " is a palindrome number");
else
echo($num . " is not a palindrome number");
?>

**Output**

12321 is a palindrome number

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