<?php
class Palindrome
{
    public static function isPalindrome($word)
    {
        $word = strtolower($word);      // change to lowercase
        $reverse_word = strrev($word);  // reverse word

        if ($word == $reverse_word) {   // compare
            return true;
        } else {
            return false;
        }
    }
}

echo Palindrome::isPalindrome('Deleveled');