View file PF.Src/Core/App/Installer.php

<?php

namespace Core\App;

class Installer {
	public static $method = 'onInstall';

	public static $basePath;

	public $db;
	public $path;

	public function __construct() {
		$this->db = new \Core\Db();
		$this->path = self::$basePath;
	}

	public function onInstall($callback) {
		if (self::$method != 'onInstall') {
			return;
		}
		call_user_func($callback);
	}

    public function OnUninstall($callback) {
		if (self::$method != 'OnUninstall') {
			return;
		}
		call_user_func($callback);
	}
}