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

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