Joomla下利用configuration.php存储简单数据

// Get the path of the configuration file
$fname = JPATH_CONFIGURATION.DS.configuration.php;
// clear cache
$cache = JFactory::getCache();
$cache->clean();
// Update the credentials with the new settings
$config =& JFactory::getConfig();
$config->setValue(config.custom_var, xxx);
// Get the config registry in PHP class format and write it to configuation.php
jimport(joomla.filesystem.file);
if (!JFile::write($fname, $config->toString(PHP, config, array(class => JConfig)))) {
die(JText::_(ERRORCONFIGFILE));
}

global $mainframe;
$mainframe->getCfg(custom_var);