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Good afternoon to everyone.

For the past 3 days, I've been struggling with PHP's Autoloading features, which aims to simplify and unify a program's class files, all located in one executing file. For the context, I am currently learning the OOP perspective of PHP from this tutorial videos to not only further understand PHP's OOP understanding before doing a PHP OOP project from college, but also to try to create my own PHP program, so do ELI5 about the solution to me, please.

From what I've learned from the following videos: Video 1 and Video 2, the autoload codes I written from what I've learned appears to work fine, however, it gave two warnings:

Warning: include(/classes/person.php): failed to open stream: No such file or directory in C:\xampp\htdocs\CollegeTimetableApp\includes\autoloader.php on line 12

Warning: include(): Failed opening '/classes/person.php' for inclusion (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\CollegeTimetableApp\includes\autoloader.php on line 12

And, it gave a fatal error message as follows:

Fatal error: Uncaught Error: Class 'person' not found in C:\xampp\htdocs\CollegeTimetableApp\includes\index.php:33 Stack trace: #0 {main} thrown in C:\xampp\htdocs\CollegeTimetableApp\includes\index.php on line 33

I will include downloadable files so that anyone check and verify it with me.

The Autoloader codes on the autoloading file: