PHP Gets the current script directory GETCWD (), __file__

The path to get the current file today generally uses the following two functions.
GETCWD () function

GETCWD-Get Current working directory

Describe
String GETCWD (Invalid)
Gets the current working directory.

return value
Returns the success on the current working directory, or false failure.

In some Unix variants, GETCWD () will return False if any of the parent directories do not have a readable or search mode set, even in the current directory. See the way and the right to get more information with chmod ().

Instance

Example of # 1 GETCWD ()

DirName (__file__)

Pre-compilation and macro definitions, predefined constants, __file__. TEXT: __file__ The name of the current compiled program file

Let's look at an example.

<?php
Echo GETCWD (). "<br/>";
echo dirname (__file__);
?>