<?php
  /**
   * PHPMailer SPL autoloader.
   * PHP Version 5
   * @package PHPMailer
   * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
   * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
   * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
   * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
   * @author Brent R. Matzelle (original founder)
   * @copyright 2012 - 2014 Marcus Bointon
   * @copyright 2010 - 2012 Jim Jagielski
   * @copyright 2004 - 2009 Andy Prevost
   * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
   * @note This program is distributed in the hope that it will be useful - WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.
   */
  
  /**
   * PHPMailer SPL autoloader.
   * @param string $classname The name of the class to load
   */
  function PHPMailerAutoload($classname)
  {
      //Can't use __DIR__ as it's only in PHP 5.3+
      $filename = dirname(__FILE__) . DIRECTORY_SEPARATOR . 'class.' . strtolower($classname) . '.php';
      if (is_readable($filename)) {
          require $filename;
      }
  }
  
  if (version_compare(PHP_VERSION, '5.1.2', '>=')) {
      //SPL autoloading was introduced in PHP 5.1.2
      if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
          spl_autoload_register('PHPMailerAutoload', true, true);
      } else {
          spl_autoload_register('PHPMailerAutoload');
      }
  } else {
      /**
       * Fall back to traditional autoload for old PHP versions
       * @param string $classname The name of the class to load
       */
      function __autoload($classname)
      {
          PHPMailerAutoload($classname);
      }
  }