PHP code - 7 lines

Link:

PHP, pasted on Feb 11:

<?php

header('content-type: text/plain');
error_reporting(E_ALL | E_STRICT);
var_dump(PHP_VERSION);
$str = '';
var_dump(isset($str[0][0]));

Output:

1 2	string(5) "5.2.5" bool(false)