Online PHP editor | refs for 3bS6S

<?php function longest_palendrome($string) { $words = split(' ', $string); $longest = ''; foreach ($words as $word) { $letters = $reversed = split('', $word); array_reverse($reversed); if ($letters === join('', $reversed) && strlen($word) > strlen($longest)) { $longest = $word; } } return $word; } echo longest_palendrome("i ama racecar");