PHP How to get Full Path to the file included home and user

问题

How can I get in PHP the full path to the file?

For example:

 /home/yob/public_html/demo/envato/cce/tug/cron/cron.php

I want the folder where the file is:

 /home/yob/public_html/demo/envato/cce/tug/cron/

回答1:

PHP < 5.3

$fullpath = dirname(__FILE__);

PHP >= 5.3

$fullpath = __DIR__;

http://php.net/manual/en/language.constants.predefined.php

来源：https://stackoverflow.com/questions/7003491/php-how-to-get-full-path-to-the-file-included-home-and-user