When and how to use this

PHP
1

Hi, I am having difficulty to understand on how and when to use this function dirname(FILE) ?
can you please enlighten my mind.

Thank you in advance.

2

FILE is one of the predefined constants that PHP makes available inside your scripts. It gives you the full path (with file name) of the current script. Calling dirname(__FILE__) will return the path to the directory of the current script. There is another constant, DIR which gives you the same information.