MediaWiki: Page import and export

Official documents on import and export. Basically, the process is done via Special:Import and Special:Export. From toolbox click Special pages, locate Import pages and Export pages links. Export Goto Special:Export, enter …

MediaWiki: Blank page after install

After installing the lastest version of MediaWiki (V1.12.0), a blank page is displayed when accessing the site. PHP error log shows: PHP Fatal error: Class ‘DOMDocument’ not found in /path/to/wiki/includes/Preprocessor_DOM.php on …