CiviCRM Code Style Example

example.php

<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.6                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2014                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM 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 Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
 */

/**
 * About the class.
 */
class CRM_Example_Class {

  /**
   * An example property.
   *
   * @var int
   */
  private $property;

  /**
   * Do something.
   *
   * @param int $whimsy
   *   The amount of whimsy to support. Greater whismy is more random.
   *
   * @return int
   *   The whimsically selected value.
   */
  public function updatePropertyWhimsically($whimsy) {
    if (rand(0, 100) > 33) {
      $this->property = rand(0, $whimsy);
    }
    else {
      $this->property = 5 + rand(0, 2 * $whimsy);
    }
    return $this->property;
  }

}

Note: There should be one "\n" at the very end, but this is not apparent in gist.