Different path depending on the method to run the script?

Question

PHP

If I run the file through a browser (routing works, it does not open directly), then a path is needed to access the configuration file:
$dir = '../../folder/config.php';
If I run the file through cron, then in order for the configuration file to be picked up, I have to specify a completely different path:

$dir    = '../user/web/domain.ru/folder/config.php';

Is it possible to use some system variable to specify one path for both launch options?

Answer 1

__DIR__ constant - it stores the path to the current script, you can build on it.