Use configuration. php In joomla to store simple data

Write Process CopyCodeThe Code is as follows: // 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 '));
}

Extraction Process Copy codeThe Code is as follows: global $ mainframe;
$ Mainframe-> getcfg ('m M _ var ');