A palindrome is a word or phrase that is identical forward or backward, such as the word A????1racecar.A????1 A standard palindrome is similar to a perfect palindrome, except that spaces and punctuation are ignored in a standard palindrome. For example, A????1Madam, IA????1m AdamA????1 is a standard palindrome because the characters are identical forward or backward, provided you remove the spaces and punctuation marks. Write a script that checks words or phrases stored in two separate string variables to determine if they are a perfect palindrome. If you feel ambitious, see if you can modify the program to check for standard palindromes. Save the perfect palindrome script as PerfectPalindrome.php and the standard palindrome script as StandardPalindrome.php.