php - how to use chdir to change to current directory?

Question

I'm trying to include a file from another directory and then change the chdir back to the current/original form.

chdir('/some/path');
include(./file.php);
chdir();//How to I change the directory back to the original form?

Anyway to change the chdir back to where file.php is located? or do I have to do it manually?

Answer 1

First you need to store the current path, before changing dirs:

$oldPath = getcwd();
chdir('/some/path');
include(./file.php);
chdir($oldPath);

Why do you need to change dirs in order to include a file?