PHP error require_once when including file in parent folder

Question

I have the following file structure

- plugins
- inParent.php
---- Download
------ inSame.php
------ Uploadify.php

This function worked smoothly until yesterday. But now, if I try to include inParent.php in uploadify.php using require_once ('../inparent.php) , It is giving me a stupid error ... I suppose ...

Warning: require_once(../inParent.php) [function.require-once]: failed to open stream: No such file or directory in /home/user/public_html/plugins/uploadify/uploadify.php on line 3 

But the file definitely exists ...

The same code when using inSame.php does not show errors and works fine.

I figured that there might be a problem with the file resolution .. But everything is fine .. all related files have 755/644 permissions.

In addition, the move_uploaded_file function also stopped working.

All code worked until yesterday. I have not changed anything.

I tried everything and I don’t know what exactly happened.

Please help me with friends .. :(: (

Answer 1

I googled and found this: require_once __DIR__.'/../inParent.php';

Answer 2

If it worked yesterday, and you are sure that you have not changed anything, try restarting the server first.

Secondly, after the request, try to use the full path instead .. Usually I create a file with my root paths and refer to them instead of using. / And ../