Every PHP script you create should immediately open with a full GPL copyright statement. This is followed by a separate docblock statement that needs to contain the following:
- A short one-line description of the file
- A longer description of the file
- @package tag (required)
- @copyright (required)
- @license (required)
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details...