Jul 28, 2025 .
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A palindrome number is a number that remains the same when its digits are reversed. For example, 12121 is a palindrome because reversing it still gives 12121.
$number = 12121;
$x = $number;
$reversed = 0;
while ($number > 0) {
$digit = $number % 10;
$reversed = $reversed * 10 + $digit;
$number = floor($number / 10);
}
if ($x == $reversed) {
echo "Palindrome";
} else {
echo "Not a palindrome";
}
The code reverses the given number and compares it with the original. If both match, the number is a palindrome. Otherwise, it’s not.