I have uploaded a library on a host and there is a file called abc.php in it under the path: /public_html/fb-platform/php and there is another file called index.php under the following path: /public_html/shaimaa and in the index.php file I want to include abc.php file within the index.php file and when I write the following require_once '../fb-platform/php/abc.php'; PHP: or the full path a messgae says: Fatal error: Class 'abc' not found in /home/mooledco/public_html/shaimaa/index.php on line 13 How can I solve this problem? I think that the path is written in a wrong way but I don't know how to solve this problem Thank you in advance