第一段代码
得到要显示的类别.
一级目录放在categories[0],
二级目录放在categories[1],
三级目录放在categories[2],
....以此类推
不过一般最多到3级就不再往下分了.
- $cpath = array();
- if(!emptyempty($_REQUEST["parentId"])){
- //category path
- //get the category path
- //put current category id in $cpath
- $current_category["parentId"] = $_REQUEST["parentId"];
- // put parent category id in $cpath
- do{
- array_unshift($cpath,$current_category["parentId"]);
- $data_category = array(
- "id" => $current_category["parentId"]
- );
- $current_category = array();
- $current_category = pos($db_conn->search($db_category,$data_category));
- }while(!emptyempty($current_category["parentId"]));
- }
- //add the first level category parentId
- array_unshift($cpath,"null");
- // get all categories
- $categories_level_count = sizeof($cpath);
- for($i=0;$i $cpath[$i]
- );
- //get first level categories
- $categories[$i] = $db_conn->search($db_category,$data_category);
- // echo $db_category->search($data_category)."";
- }
第二段代码是将菜单以
- <ul>
- <li>
- <ul>
- ...
- </ul>
- </li>
- </ul>
的形式显示菜单
- function show_left_navigation($i){
- global $categories,$cpath;
- if(emptyempty($categories[$i]))
- return;
- echo '<ul>';
- foreach($categories[$i] as $id=>$category){
- echo '';
- if($id==end($cpath))
- echo '<a href="advancedSearch.php?parentId='.$id.'">'.$category["name"].'</a>';
- else
- echo '<a href="advancedSearch.php?parentId='.$id.'">'.$category["name"].'</a>';
- if(in_array($id,$cpath))
- show_left_navigation($i+1);
- echo '';
- }
- echo '</ul>';
- }
- show_left_navigation(0);
关键字词: