为了创建异步的树形菜单(Tree),每一个树节点必须要有一个 'id' 属性,这个将提交回服务器去检索子节点数据。
- <ul id="tt" class="easyui-tree"
- url="tree2_getdata.php">
- </ul>
- $id = isset($_POST['id']) ? intval($_POST['id']) : 0;
- include 'conn.php';
- $result = array();
- $rs = mysql_query("select * from nodes where parentId=$id");
- while($row = mysql_fetch_array($rs)){
- $node = array();
- $node['id'] = $row['id'];
- $node['text'] = $row['name'];
- $node['state'] = has_child($row['id']) ? 'closed' : 'open';
- array_push($result,$node);
- }
- echo json_encode($result);
- function has_child($id){
- $rs = mysql_query("select count(*) from nodes where parentId=$id");
- $row = mysql_fetch_array($rs);
- return $row[0] > 0 ? true : false;
- }