How to get the last element of an array without deleting it?

Ok, I know all about [`array_pop()`][1], but that deletes the last element. How to get the last element of an array without deleting it? Here's a bonus: $array = array('a' => 'a', 'b' => 'b', 'c' => 'c'); or even $array = array('a', 'b', 'c', 'd'); unset($array[2]); echo $array[sizeof($array) - 1]; // Output: PHP Notice: Undefined offset: 2 in - on line 4 [1]: http://www.php.net/array_pop