<?php
class Palindrome
{
    public static function isPalindrome($word)
    {
        $lowerCase    = strtolower($word);
        $backwardCase = strrev($lowerCase);
        if($backwardCase == $lowerCase){
          return TRUE;
        }

        return FALSE;


    }
}

echo Palindrome::isPalindrome('Deleveled');