写入过程
 
  复制代码 代码如下:
 
  // 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'));
 
  }
 
  提取过程
 
 
  复制代码 代码如下:
 
  global $mainframe;
 
  $mainframe->getCfg('custom_var');
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