MediaWiki variable extension (Parser code).php
From Organic Design wiki
<?
- Change the default case to the following in the getVariableValue() function of /includes/Parser.php (about line 1850 in 1.4x)
- see also: [[MediaWiki variables]] and [[Category:MediaWiki]]
default: $ret = null; if (wfRunHooks('ParserGetVariableValueSwitch',array(&$this,&$varCache,&$index,&$ret))) return $ret; else return null; ?>