DedeCMS通过Tag和Keyword标签获取相关文章方法
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以下代码由PHP站长网 52php.cn收集自互联网现在PHP站长网小编把它分享给大家，仅供参考 dedecms 默认自带的相关文章是 likearticle 标签实现，实际应用的时候发现这个标签调用的相关文章并不完美，我们需要改进下，一般我们要调用相关文章都是以 Tag 或者 keyword 匹配，我们今天就做下改进，实现全站按 TAG 和关键字调用相关文章，这个方法可单用 tag 来调用相关文章，也可用 tag+keyword 来调用相关文章(默认 tag 优先于 keyword，可以自己排序)，非常适合 SEO，经测试效果极佳。具体方法如下，把下面的 php 代码换掉 include/taglib/likearticle.lib 里的代码： <?php if(!defined('DEDEINC')) exit('Request Error!'); /*-------------------------------------- 按关键词关连文章的标签 eregtype属性 eregtype = keyword 只匹配关键字 eregtype = tag 只匹配tag eregtype = all tag优先，不存在tag则匹配关键字 mytypeid='' 栏目ID,多个栏目用,隔开 ---------------------------------------*/ function lib_likearticle(&$ctag,&$refObj) { global $dsql; ? //属性处理 $attlist="row|12,titlelen|28,infolen|150,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|120,imgheight|90"; FillAttsDefault($ctag->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."%"; ? $ids = array(); $tids = array(); ? $typeid = ( !empty($mytypeid) ? $mytypeid : 0 ); if(empty($typeid)) { if(!empty($refObj->Typelink->TypeInfos['reid'])) { $typeid = $refObj->Typelink->TypeInfos['reid']; } else { if(!empty($refObj->Fields['typeid'])) $typeid = $refObj->Fields['typeid']; } } ? if( !empty($typeid) && !ereg(',',$typeid) ) { $typeid = GetSonIds($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 limit 0,$row"); while($arow = $dsql->GetArray("me")) { $ids[] = $arow['aid']; $arcid = $refObj->Fields['aid']; } } } ? if($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); $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id where arc.id in($idsStr) $typeid order by arc.id desc"; } 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 "; } $query = "Select arc.*,tp.sitepath from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id where arc.arcrank>-1 and ($keyword) $typeid $orderquery limit 0,$row"; } else { if(!empty($typeid)) { $typeid = " arc.typeid in($typeid) And arc.id<>$arcid "; } $query = "Select arc.*,tp.sitepath from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id 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) { $artlist = "<table width='$tablewidth' border='0' cellspacing='0' cellpadding='0'> "; } $dtp2 = new DedeTagParse(); $dtp2->SetNameSpace('field','[',']'); $dtp2->LoadString($innertext); $GLOBALS['autoindex'] = 0; $line = $row; for($i=0; $i < $line; $i++) { if($col>1) $artlist .= "<tr> "; for($j=0; $j < $col; $j++) { if($col>1) $artlist .= " <td width='$colWidth'> "; if($row = $dsql->GetArray("al")) { $ids[] = $row['id']; //处理一些特殊字段 $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'],$row['isdefault'],$row['defaultname'],$row['ispart'], $row['namerule2'],$row['sitepath']); if($row['litpic'] == '-' || $row['litpic'] == '') { $row['litpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif'; } if(!eregi("^http://",$row['litpic']) && $GLOBALS['cfg_multi_site'] == 'Y') { $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic']; } $row['picname'] = $row['litpic']; $row['stime'] = GetDateMK($row['pubdate']); $row['typelink'] = "<a href='".$row['typeurl']."'>".$row['typename']."</a>"; $row['image'] = "<img src='".$row['picname']."' border='0' width='$imgwidth' height='$imgheight'>"; $row['imglink'] = "<a href='".$row['filename']."'>".$row['image']."</a>"; $row['fulltitle'] = $row['title']; $row['title'] = cn_substr($row['title'],$titlelen); if($row['color']!='') $row['title'] = "<font color='".$row['color']."'>".$row['title']."</font>"; if(ereg('b',$row['flag'])) $row['title'] = "<strong>".$row['title']."</strong>"; $row['textlink'] = "<a href='".$row['filename']."'>".$row['title']."</a>"; $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()." "; } //if hasRow else { $artlist .= ''; } if($col>1) $artlist .= " </td> "; } //Loop Col if($col>1) $i += $col - 1; if($col>1) $artlist .= " </tr> "; } //loop line if($col>1) $artlist .= " </table> "; $dsql->FreeResult("al"); return $artlist; } ?> 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究如果以上内容对您有帮助，欢迎收藏、点赞、推荐、分享。 （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |