PHP exec() command doesn't execute in Apache Windows

Question

I'm trying to run the PHP exec() command, but it doesn't execute. It works on NGINX but doesn't work on Apache. I'm using Windows.

$cmdex = exec('cmd /c C:\nginx-1.20.2\html\pythonbatch.bat');
echo $cmdex;

I've tried different solutions like changing the permission and config files, but it doesn't work. When I run the PHP program, it outputs this but doesn't execute:

C:\Apache24\htdocs>exit

PHP works fine in general, but when I do anything that has to do with executing, it doesn't work.

EDIT: To clarify, PHP works when executing the command standalone but doesn't work in browser.