supesite自带的采集保存文章时自动添加tag的方法

if($itemid){
    $subjectenc = rawurlencode(strip_tags($msgarr['subject']));
    //注意您是用的字符集，这里用的是utf-8的，如您的网站是gbk的，请设置为gbk
    $charset = 'utf-8';
    $data = @implode('', file("http://keyword.discuz.com/related_kw.html?title=$subjectenc&content=&ics=$charset&ocs=$charset"));
    if($data) {
        $parser = xml_parser_create();
        xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
        xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
        xml_parse_into_struct($parser, $data, $values, $index);
        xml_parser_free($parser);

        $kws = array();

        foreach($values as $valuearray) {
            if($valuearray['tag'] == 'kw' || $valuearray['tag'] == 'ekw') {
                if(PHP_VERSION > '5' && $charset != 'utf-8') {
                    $valuearray['value'] = encodeconvert("UTF-8", $valuearray['value']);
                } else {
                    $valuearray['value'] = trim($valuearray['value']);
                }
                $kws[] = $valuearray['value'];
            }
        }

        if($kws) {
            foreach($kws as $kw) {
                $kw = htmlspecialchars($kw);
                $return .= $kw.' ';
            }
            $return = htmlspecialchars($return);
        }

    }
    if($return){
        include_once(S_ROOT.'./function/tag.func.php');
        include_once(S_ROOT.'./data/system/category.cache.php');
        $zj_tagarr = posttag($return);
        postspacetag('add', $_SGLOBAL['category'][$thevalue['importcatid']]['type'], $itemid, $zj_tagarr,1);
        $tagnamearr = array_merge($zj_tagarr['existsname'], $zj_tagarr['nonename']);
        $setsqlarr['relativetags'] = addslashes(serialize($tagnamearr));
        $setsqlarr['relativeitemids'] = getrelativeitemids($itemid, array($_SGLOBAL['category'][$thevalue['importcatid']]['type']));
        $setsqlarr['includetags'] = postgetincludetags($msgarr['message'], $tagnamearr);
        updatetable('spacenews', $setsqlarr, array('itemid'=>$itemid));
    }

}