gogs-php-api-client/src/gpac.php

<?php

define('GPAC_BASE_PATH', realpath(dirname(__FILE__)));

spl_autoload_register(function($class) {
    $file = GPAC_BASE_PATH . DIRECTORY_SEPARATOR . str_replace("\\", DIRECTORY_SEPARATOR, strtolower($class)) . ".php";

    if (file_exists($file))
        require_once $file;
});