is_palindrome

<?php

function is_palindrome( $word ) {

	return $word === strrev( $word ) ? true : false;
	
}

function print_palindrome($word)
{
    echo($word . " is a palindrome: " . (is_palindrome($word) ? "YES" : "NO") . PHP_EOL);
}

print_palindrome("MOM");
print_palindrome("DOG");
print_palindrome("RACECAR");