autoload.php

<?php
function classAutoloader(string $className): void
{
    $baseDir = __DIR__.DIRECTORY_SEPARATOR."Controllers".DIRECTORY_SEPARATOR;

    $className = trim($className. "\\");
    $className = explode("\\", $className)[1];

    $filePath = $baseDir.$className.".php";

    if (file_exists($filePath)){
        include_once($filePath);
    }
}

spl_autoload_register("classAutoloader");