Separate Klasse als Session-Speicher verwenden

<?php
 
require_once(PAPAYA_INCLUDE_PATH.'system/sys_base_object.php');
 
class my_app_options extends base_object {
 
  var $_sessionParamName = '';
 
  function &_getInstance() {
    static $instance;
    if (!isset($instance) ||
        !is_object ($instance) ||
        !is_a($instance, 'my_app_options') {
      $instance = new my_app_options;
      $instance->initialize();
    }
    return $instance;
  }
 
  function initialize() {
    $this->_sessionParamName = get_class().'_app_options';
    $this->sessionParams = $this->getSessionValue($this->_sessionParamName);
  }
 
  function saveSession() {
    return $this->setSessionValue($this->_sessionParamName, $this->sessionParams);
  }
 
  function setOptionExampleValue($value = '') {
    $optionObj = self::_getInstance();
    $optionObj->sessionParams['example_value'] = $value;
    return $this->saveSession();
  }
 
  function getOptionExampleValue() {
    $optionObj = self::_getInstance();
    if (isset($optionObj->sessionParams['example_value'])) {
      return $optionObj->sessionParams['example_value'];
    }
  }
}
?>

...
my_app_options::setOptionExampleValue('test');
$value = my_app_options::getOptionExampleValue();
...