How to connect a script from the main domain to a subdomain?

Question

PHP

There was such a problem, I want to connect a script from the main domain in a subdomain.
There are api.site.ru and site.ru folders . The API folder contains index.php, which should include classes from the main domain. I get the api folder path:
dirname ( __FILE__ )
and just remove the api. . The path goes straight to the main folder, but for some reason I can't access the files.

Warning: include(/home/f/user123/test.io/public_html/engine/classes/mysql.class.php): failed to open stream: Permission denied in /home/f/user123/api.test.io/public_html/index.php on line 22

I set the rights to 777 on the folders, but nothing is the same!

Answer 1

As an option, change the open_basedir settings to '/home/f/user123/'

Answer 2

Make a symbolic link to the folder with the desired files, this folder can be accessed as a normal one