<code lang="PHP">$d = dir('plugins');
$somevar = "yaay, it works!";

while (($entry = $d->read()) != false) {
	// make sure the file isn't the current dir or the parent dir
	if ($entry != "." && $entry != "..") {
		// get the class name from the file name
		$class = str_replace(".php", "", $entry);
		// include the plugin
		include 'plugins/' . $entry;

		$instance = new $class();
		// now we can call anything in that class if it exists!
		$instance->invokeSomething($somevar);
	}
}</code>