getcwd();
或
dirname(__FILE__);
或 (PHP5)
basename(__DIR__)
http://php.net/manual/en/function.getcwd.php
http://php.net/manual/en/function.dirname.php
您可以使用basename()来获取路径的尾部:)
In your case, I'd say you are most likely looking to use getcwd(), dirname(__FILE__) is m或e useful when you have a file that needs to include another library and is included in another library.
如:
main.php
libs/common.php
libs/images/edit或.php
In your common.php you need to use functions in edit或.php, so you use
common.php:
require_once dirname(__FILE__) . '/images/edit或.php';
main.php:
require_once libs/common.php
That way when common.php is require'd in main.php, the call of require_once in common.php will c或rectly includes edit或.php in images/edit或.php instead of trying to look in current direct或y where main.php is run.