Online PHP editor | refs for Ri9hB

<?php error_reporting(E_ALL); echo 'Here is __DIR__ to start: ' . "\n"; var_dump(__DIR__); echo "\n\n"; echo 'Checking if __DIR__ is defined...' . "\n"; if (!defined('__DIR__')) { echo 'Nope, defined() returned (bool)false.' . "\n"; echo 'No prob. Executing define(\'__DIR__\', \'/foo/bar\')...' . "\n"; define('__DIR__', '/foo/bar'); echo 'Done, defined __DIR__ as "/foo/bar".' . "\n" . "\n"; echo 'Double-checking __DIR__ is defined now...' . "\n"; if (!defined('__DIR__')) { echo 'WTF, defined(\'__DIR__\') again returned (bool)false?!' . "\n"; } else{ echo 'Strike, this time defined(\'__DIR__\') returned (bool)true.' . "\n"; } } else{ echo 'Yep, defined(\'__DIR__\') returned (bool)true.' . "\n"; } echo 'Finally, here is the result of var_dump(__DIR__):' . "\n"; var_dump(__DIR__);