ネットアンサー55備忘録

$array = array('a', 'b', 'c');
$last = end($array);
echo $last; // 'a'

$array = array('a' => 1, 'b' => 2, 'c' => 3);
// Strict Standards: Only variables should be passed by reference
// $last_key = end(array_keys($array)); 
$tmp = array_keys($array);
$last_key = end($tmp);