Palindrome Number Program in PHP

The palindrome number means the number will be the same after reversing any number. For example, we reverse the 151 results will be 151 so it is a palindrome number.

Check Palindrome Number Steps

• Take a number.
• Reverse the input number.
• Compare both the numbers.

Note: If equal, it means the number is a palindrome

Palindrome Number Program Using While Loop

<?php
$origNumber = 151;
$tempNumber=$origNumber;
$revNumber = 0;
while($tempNumber != 0){
	$revNumber = $revNumber * 10 + $tempNumber % 10;
	$tempNumber = (int)($tempNumber / 10); 
}
if($revNumber==$origNumber){
	echo $origNumber." is Palindrome number";
}
else{
	echo $origNumber." is not Palindrome number";
}
?>

Output:151 is Palindrome number

Palindrome Number Program Using While Loop

<?php
$origNumber = 365;
if(checkPalindrome($origNumber)==$origNumber){
    echo $origNumber." is Palindrome number";
}else{
    echo $origNumber." is not Palindrome number";
}
function checkPalindrome($checkNumber){
    $tempNumber=$checkNumber;
    $revNumber = 0;
    while($tempNumber != 0){
        $revNumber = $revNumber * 10 + $tempNumber % 10;
        $tempNumber = (int)($tempNumber / 10); 
    }
    return $revNumber;
}
?>

Output: 365 is not Palindrome number