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dedecms中怎么獲取無限欄目子分類？

做企業網站大部分是使用DEDECMS，今天在給客戶設計網站時，把DEDE自動內鏈和URL全拼格式搞定后，又遇到了個小問題，因為產品分類最多有四級，客戶要求在左側有個彈出式菜單調用各級子分類出來，而DEDECMS默認只能調用一級分類。經過努力，百度+GOOGLE+自己腦袋，終于搞定了這個東西，不敢獨享，發出來給有需要的朋友分享。?

推薦學習：織夢cms

首先要把/include/taglib/channerl.lib.php 文件的代碼修改成以下的：

代碼如下:

<?php   function lib_channel(&$ctag,&$refObj)  {  global $_sys_globals,$envs,$dsql;  $attlist = “typeid|0,reid|0,row|100,col|1,type|son,currentstyle|”;  FillAttsDefault($ctag->CAttribute-&gt;Items,$attlist);? extract($ctag-&gt;CAttribute-&gt;Items,?EXTR_SKIP);? $innertext?=?$ctag-&gt;GetInnerText();? if(empty($typeid)?&amp;&amp;?$envs['typeid']!=0)? {? $typeid?=?$envs['typeid'];? $reid?=?$envs['reid'];? }else{? $reid=0;? }? if($type==”||$type==’sun’)?$type=”son”;? if($innertext==”)?$innertext?=?GetSysTemplets(“channel_list.htm”);? if($reid==0?&amp;&amp;?$typeid&gt;0)? {? $dbrow?=?$dsql-&gt;GetOne(“Select?reid?From?ying_arctype?where?id=’$typeid’?“);? if(is_array($dbrow))?$reid?=?$dbrow['reid'];? }? $likeType?=?”;? if($type==’top’)? {? $sql?=?“Select?id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description? From?ying_arctype?where?reid=0?And?ishidden1?order?by?sortrank?asc?limit?0,$row”;? }? else?if($type==”son”)? {? //if($_sys_globals['typeid']&gt;0)?$typeid?=?$_sys_globals['typeid'];? if($typeid==0)?{? return?”;? }? $sql?=?“Select?id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description? From?ying_arctype?where?reid=’$typeid’?And?ishidden1?order?by?sortrank?asc?limit?0,$row”;? }? else?if($type==”self”)? {? if($reid==0)?{? return?”;? }? $sql?=?“Select?id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description? From?‘ying_arctype’?where?reid=’$reid’?And?ishidden1?order?by?sortrank?asc?limit?0,$row”;? }? //And?id’$typeid’? $dtp2?=?new?DedeTagParse();? $dtp2-&gt;SetNameSpace(“field”,”[","]“);? $dtp2-&gt;LoadSource($innertext);? $dsql2?=?clone?$dsql;? $dsql-&gt;SetQuery($sql);? $dsql-&gt;Execute();? $line?=?$row;? $GLOBALS['autoindex']?=?0;? for($i=0;$i?1)?$likeType?.=?“

rn”;? for($j=0;$j1)?$likeType?.=?“

rn”;? if($row=$dsql->GetArray())? {? if($type==’self’?&&?$row[‘id’]==$typeid)?//處理同級欄目中，當前欄目的樣式? {? if($currentstyle!=”)? {? $linkOkstr?=?$currentstyle;? $row[‘typelink’]?=?GetOneTypeUrlA($row);? $linkOkstr?=?str_replace(“~typelink~”,$row[‘typelink’],$linkOkstr);? $linkOkstr?=?str_replace(“~typename~”,$row[‘typename’],$linkOkstr);? $likeType?.=?$linkOkstr;? }? }else? {? $row[‘typelink’]?=?$row[‘typeurl’]?=?GetOneTypeUrlA($row);? if(is_array($dtp2->CTags))? {? foreach($dtp2->CTags?as?$tagid=>$ctag){? if(isset($row[$ctag->GetName()]))? {? $dtp2->Assign($tagid,$row[$ctag->GetName()]);? }? elseif?(preg_match(‘/^sonchannel[0-9]*$/’,$ctag->GetName()))? {? $dtp2->Assign($tagid,lib_channel_son($ctag,$row[‘id’],$dsql2));? }? }? }? $likeType?.=?$dtp2->GetResult();? }? }? if($col>1)?$likeType?.=?“

rn”;? $GLOBALS[‘autoindex’]++;? }//Loop?Col? if($col>1)? {? $i?+=?$col?–?1;? $likeType?.=?”?

rn”;? }? }//Loop?for?$i? reset($dsql2);? $dsql->FreeResult();? return?$likeType;? }? function?lib_channel_son($ctag,$typeid?=?0,$dsql2)? {? $attlist?=?“row|100,col|1,currentstyle|”;? FillAttsDefault($ctag->CAttribute->Items,$attlist);? extract($ctag->CAttribute->Items,?EXTR_SKIP);? $innertext?=?$ctag->GetInnerText();? $dsql3?=?clone?$dsql2;? $likeType?=?”;? //if($_sys_globals[‘typeid’]>0)?$typeid?=?$_sys_globals[‘typeid’];? if($typeid==0)?{? return?”;? }? $sql?=?“Select?id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath,description? From?ying_arctype?where?reid=’$typeid’?And?ishidden1?order?by?sortrank?asc?limit?0,$row”;? //And?id’$typeid’? $dtp2?=?new?DedeTagParse();? $dtp2->SetNameSpace(“field”,”[“,”]“);? $dtp2->LoadSource($innertext);? $dsql2->SetQuery($sql);? $dsql2->Execute();? $line?=?$row;? for($i=0;$i?1)?$likeType?.=?“

rn”;? for($j=0;$j1)?$likeType?.=?“

rn”;? if($row=$dsql2->GetArray())? {? $row[‘typelink’]?=?$row[‘typeurl’]?=?GetOneTypeUrlA($row);? if(is_array($dtp2->CTags))? {? foreach($dtp2->CTags?as?$tagid=>$ctag){? if(isset($row[$ctag->GetName()]))? {? $dtp2->Assign($tagid,$row[$ctag->GetName()]);? }? elseif?(preg_match(‘/^sonchannel[0-9]*$/’,$ctag->GetName()))? {? $dtp2->Assign($tagid,lib_channel_son($ctag,$row[‘id’],$dsql3));? }? }? }? $likeType?.=?$dtp2->GetResult();? }? if($col>1)?$likeType?.=?“

rn”;? }//Loop?Col? if($col>1)? {? $i?+=?$col?–?1;? $likeType?.=?”?

rn”;? }? }//Loop?for?$i? reset($dsql3);? $dsql2->FreeResult();? return?$likeType;? }? ?>

在模板里面用 [field:sonchannel0] [/field:sonchannel0] 調用，這個是用來取子欄目用得（使用【sonchannel+數字】作為標簽名是為了防止嵌套的時候無法正確解析標簽），這個的作用就是當你的欄目有很多子欄目無限分級的時候方便你取子欄目的。實例一下：?

代碼如下: