<?php
class Palindrome
{
    public static function isPalindrome($word)
    {
        $word_ = strtolower($word);

        $word_ = str_replace(' ', '', $word_);

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

        $reverse = strrev($word_);

        if($reverse == $word_){
            return true;
        }else{
            return false;
        }
    }
}
echo Palindrome::isPalindrome('Deleveled');