<?php
class Palindrome
{
    public static function isPalindrome($word)
    {
        $word = str_replace(' ', '', $word);

        $word = preg_replace('/[^A-Za-z0-9\-]/', '', $word);

        $word = strtolower($word);

        $reverse = strrev($word);

        if ($word == $reverse) {
            return true;
        }
        else {
            return false;
        }
    }
}

echo Palindrome::isPalindrome('Deleveled');