$cwd = isset($_SERVER['PWD']) && is_dir($_SERVER['PWD']) ? $_SERVER['PWD'] : getcwd();
// See https://getcomposer.org/doc/articles/vendor-binaries.md#finding-the-composer-autoloader-from-a-binary
if ((isset($_composer_autoload_path) && file_exists($autoloadFile = $_composer_autoload_path))
    || file_exists($autoloadFile = __DIR__ . '/../../autoload.php')
    || file_exists($autoloadFile = __DIR__ . '/../autoload.php')
    || file_exists($autoloadFile = __DIR__ . '/vendor/autoload.php')
) {
    \define('JBZOO_AUTOLOAD_FILE', $autoloadFile);
} else {
    throw new \Exception("Could not locate autoload.php. cwd is $cwd; __DIR__ is " . __DIR__);
}

require_once JBZOO_AUTOLOAD_FILE;