在网站建设中,精准输出相关文章对于提升用户体验和搜索引擎优化(SEO)至关重要。然而,官方提供的 `dede:likearticle` 标签可能无法满足所有需求。为了实现更精确的相关文章推荐,我们可以自定义一个类库文件来增强功能。以下是一个详细的解决方案。

CAttribute->Items,$attlist);
    extract($ctag->CAttribute->Items, EXTR_SKIP);
    $revalue = '';

    if(empty($tablewidth)) $tablewidth = 100;
    if(empty($col)) $col = 1;
    $colWidth = ceil(100/$col);
    $tablewidth = $tablewidth."%";
    $colWidth = $colWidth."%";

    $orwheres = '';
    if($flag != '') {
        $flags = explode(',', $flag);
        for($i=0; isset($flags[$i]); $i++) $orwheres .= " AND FIND_IN_SET('{$flags[$i]}', arc.flag)>0 ";
    }

    $ids = array();
    $tids = array();

    if(!empty($refObj->Fields['tags'])) {
        $keyword = $refObj->Fields['tags'];
    } else {
        $keyword = (!empty($refObj->Fields['keywords']) ? $refObj->Fields['keywords'] : '');
    }

    $typeid = (!empty($typeid) ? $typeid : 0);
    if(empty($typeid)) {
        if(!empty($refObj->Typelink->TypeInfos['reid'])) {
            $typeid = $refObj->Typelink->TypeInfos['reid'];
        } else {
            if(!empty($refObj->Fields['typeid'])) $typeid = $refObj->Fields['typeid'];
        }
    }

    if(!empty($refObj->Fields['tags']) && $eregtype != 'keyword') {
        $tags = explode(',', addslashes($refObj->Fields['tags']));
        $getsql = " tag like '".join("' OR tag like '", $tags)."' ";
        $dsql->Execute('me', "Select * From `dede_tagindex` where $getsql ");
        while($arow = $dsql->GetArray('me')) {
            $tids[] = $arow['id'];
        }
        $tid = join(',', $tids);
        if($tid!='') {
            $dsql->Execute("me", "Select aid From `dede_taglist` where tid in($tid) And arcrank > -1 group by aid order by aid desc");
            while($arow = $dsql->GetArray("me")) {
                $ids[] = $arow['aid'];
                $arcid = $refObj->Fields['aid'];
            }
        }
    }

    // 获得附加表的相关信息
    $addField = "";
    $addJoin = "";
    if(is_object($refObj->ChannelUnit)) {
        $addtable = $refObj->ChannelUnit->ChannelInfos['addtable'];
        if($addtable!="") {
            $addJoin = " LEFT JOIN $addtable ON arc.id = ".$addtable.".aid ";
            $addField = "";
            $fields = explode(",",$refObj->ChannelUnit->ChannelInfos['listfields']);
            foreach($fields as $k=>$v) {
                $nfields[$v] = $k;
            }
            foreach($refObj->ChannelUnit->ChannelFields as $k=>$arr) {
                if(isset($nfields[$k])) {
                    if(!empty($arr['rename'])) {
                        $addField .= ",".$addtable.".".$k." as ".$arr['rename'];
                    } else {
                        $addField .= ",".$addtable.".".$k;
                    }
                }
            }
        }
    }

    if($eregtype == 'tag' && count($ids) == 0 ) {
        return;
    } else {
        if(count($ids) > 0) {
            if(!empty($typeid)) {
                $typeid = " And arc.typeid in($typeid) And arc.id<>$arcid ";
            }
            $idsStr = join(',', $ids);
            $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath $addField from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin where arc.arcrank>-1 and arc.id in($idsStr) $typeid order by arc.id desc limit 0, $row";
        } else {
            $limitRow = $row - count($ids);
            $keyword = '';
            if(!empty($refObj->Fields['keywords'])) {
                $keywords = explode(',' , trim($refObj->Fields['keywords']));
                $keyword = '';
                $n = 1;
                foreach($keywords as $k) {
                    if($n > 3) break;
                    if(trim($k)=='') continue;
                    else $k = addslashes($k);
                    $keyword .= ($keyword=='' ? " CONCAT(arc.keywords,' ',arc.title) like '%$k%' " : " OR CONCAT(arc.keywords,' ',arc.title) like '%$k%' ");
                    $n++;
                }
            }
            $arcid = (!empty($refObj->Fields['id']) ? $refObj->Fields['aid'] : 0);
            if( empty($arcid) || $byabs==0 ) {
                $orderquery = " order by arc.id desc ";
            } else {
                $orderquery = " order by ABS(arc.id - ".$arcid.") ";
            }
            if($keyword != '') {
                if(!empty($typeid)) {
                    $typeid = " And arc.typeid in($typeid) And arc.id<>$arcid ";
                }
                $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath $addField from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin where arc.arcrank>-1 and ($keyword) $typeid $orderquery limit 0, $row";
            } else {
                if(!empty($typeid)) {
                    $typeid = " arc.typeid in($typeid) And arc.id<>$arcid ";
                }
                $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath $addField from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin where arc.arcrank>-1 and $typeid $orderquery limit 0, $row";
            }
        }
    }

    $innertext = trim( $ctag->GetInnerText() );
    if($innertext=='') $innertext = GetSysTemplets('part_arclist.htm');
    $dsql->SetQuery($query);
    $dsql->Execute('al');
    $artlist = '';
    if($col > 1){
        $artlist = "";
    }
    $dtp2 = new DedeTagParse();
    $dtp2->SetNameSpace('field', '[', ']');
    $dtp2->LoadString($innertext);
    $GLOBALS['autoindex'] = 0;
    $line = $row;
    for($i=0; $i < $line; $i++) {
        if($col>1) $artlist .= "";
        for($j=0; $j < $col; $j++) {
            if($col>1) $artlist .= "  ";
        }
        if($col>1) $i += $col - 1;
        if($col>1) $artlist .= "  ";
    }
    if($col>1) $artlist .= "  
"; if($row = $dsql->GetArray("al")) { $ids[] = $row['id']; $row['info'] = $row['infos'] = cn_substr($row['description'],$infolen); $row['id'] = $row['id']; if($row['corank'] > 0 && $row['arcrank']==0) { $row['arcrank'] = $row['corank']; } $row['filename'] = $row['arcurl'] = GetFileUrl($row['id'],$row['typeid'],$row['senddate'],$row['title'],$row['ismake'], $row['arcrank'],$row['namerule'],$row['typedir'],$row['money'],$row['filename'],$row['moresite'],$row['siteurl'],$row['sitepath']); $row['typeurl'] = GetTypeUrl($row['typeid'],$row['typedir'],$row['isdefault'],$row['defaultname'],$row['ispart'], $row['namerule2'],$row['moresite'],$row['siteurl'],$row['sitepath']); if($row['litpic'] == '-' || $row['litpic'] == '') { $row['litpic'] = $GLOBALS['cfg_cmspath']."/images/defaultpic.gif"; } if(!preg_match("#^http://#i", $row['litpic']) && $GLOBALS['cfg_multi_site'] == 'Y') { $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic']; } $row['picname'] = $row['litpic']; $row['stime'] = GetDateMK($row['pubdate']); $row['typelink'] = "".$row['typename'].""; $row['image'] = ""; $row['imglink'] = "".$row['image'].""; $row['fulltitle'] = $row['title']; $row['title'] = cn_substr($row['title'], $titlelen); if($row['color']!='') $row['title'] = "".$row['title'].""; if(preg_match('/b/', $row['flag'])) $row['title'] = "".$row['title'].""; $row['textlink'] = "".$row['title'].""; $row['plusurl'] = $row['phpurl'] = $GLOBALS['cfg_phpurl']; $row['memberurl'] = $GLOBALS['cfg_memberurl']; $row['templeturl'] = $GLOBALS['cfg_templeturl']; if(is_array($dtp2->CTags)) { foreach($dtp2->CTags as $k=>$ctag) { if($ctag->GetName()=='array') { $dtp2->Assign($k,$row); } else { if(isset($row[$ctag->GetName()])) $dtp2->Assign($k,$row[$ctag->GetName()]); else $dtp2->Assign($k,''); } } $GLOBALS['autoindex']++; } $artlist .= $dtp2->GetResult(); } else { $artlist .= ''; } if($col>1) $artlist .= "
"; $dsql->FreeResult("al"); return $artlist; } ?>

在上述代码中,我们创建了一个名为 `liketags.lib.php` 的文件,并将其放置在 `/include/taglib` 目录下。该文件通过处理标签、关键词和附加字段等信息,实现了更精准的相关文章推荐。

前台模板调用示例:


{dede:liketags row='3' typeid='6' titlelen='250' eregtype='all|tag|keyword' flag='c' infolen='250'}
    
  • [field:title/]

    [field:title/]

    ¥[field:jiage/]元

  • {/dede:liketags}

    通过以上方法,您可以更灵活地控制相关文章的展示方式,从而提高网站的SEO效果和用户体验。