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//當前位置-第一個參數(shù) catid為當前欄目的id,第二個參數(shù)為文章的標題,調(diào)用欄目當前位置時第二個參數(shù)為空即可.
$this->assign("now_here",$this->now_here($catid,$res['title']));
?
//解釋一下,欄目表category中的catid為欄目id,catname為欄目名稱,asmenu為欄目父級的id,當為頂級欄目時,asmenu為0 .

PHP實例protected function now_here($catid,$ext=''){
?$cat = M("Category");
?$here = '<a href="">首頁</a>';
?$uplevels = $cat->field("catid,catname,asmenu")->where("catid=$catid")->find();
?if($uplevels['asmenu'] != 0)
?$here .= $this->get_up_levels($uplevels['asmenu']);
?$here .= ' -> <a href="/cat_'.$uplevels['catid'].'.html">'.$uplevels['catname']."</a>";
?if($ext != '') $here .= ' -> '.$ext;
?return $here;
}
protected function get_up_levels($id){
?$cat = M("Category");
?$here = '';
?$uplevels = $cat->field("catid,catname,asmenu")->where("catid=$id")->find();
?$here .= ' -> <a href="/cat_'.$uplevels['catid'].'.html">'.$uplevels['catname']."</a>";
?if($uplevels['asmenu'] != 0){
? $here = $this->get_up_levels($uplevels['asmenu']).$here;
?}
?return $here;
}