function wfGetRecommendContent()
{
    global $wgUser, $wgParser;
    $block = HuijiSkinTemplate::getIndexBlock('首页/Admin');
    $pageTitle = Title::newFromText('首页/Admin');
    $wgParserOptions = new ParserOptions($wgUser);
    $n = count($block);
    $recContent = array();
    for ($i = 0; $i < $n; $i++) {
        $contentRes['title'] = $block[$i]->title;
        $contentRes['wikiname'] = $block[$i]->wikiname;
        $contentRes['desc'] = $wgParser->parse($block[$i]->desc, $pageTitle, $wgParserOptions)->getText();
        $contentRes['wikiurl'] = $block[$i]->wikiurl;
        $contentRes['siteurl'] = $block[$i]->siteurl;
        $contentRes['backgroungimg'] = $block[$i]->backgroungimg;
        $recContent[] = $contentRes;
    }
    $randKey = array_rand($recContent, 7);
    $resRand = array();
    foreach ($randKey as $value) {
        $resRand[] = $recContent[$value];
    }
    $ret = array('success' => true, 'result' => $resRand);
    $out = json_encode($ret);
    return $out;
}
 /**
  * Update page's cache when someone edit the page(Admin,subnav,footer)
  */
 public static function onNewRevisionFromEditComplete($article, Revision $rev, $baseID, User $user)
 {
     global $wgMemc, $wgParser, $wgHuijiPrefix;
     if (in_array($article->getTitle()->getFullText(), HuijiSkinTemplate::getPageParts())) {
         $option = new ParserOptions($user);
         $key = wfMemcKey('page', 'getPageRaw', 'all', $article->getTitle()->getFullText());
         $output = $wgParser->preprocess($article->getContent()->getNativeData(), $article->getTitle(), $option);
         $wgMemc->set($key, $output);
     } elseif ($wgHuijiPrefix == 'www' && in_array($article->getTitle()->getFullText(), HuijiSkinTemplate::getSharedParts())) {
         $option = new ParserOptions($user);
         $key = wfForeignMemcKey('huiji', '', 'page', 'getPageRaw', 'shared', $article->getTitle()->getFullText());
         $output = $wgParser->preprocess($article->getContent()->getNativeData(), $article->getTitle(), $option);
         $wgMemc->set($key, $output);
     }
     return true;
 }