php客户端和服务器的值传递

客户端(浏览器):

		<form name="form1" action="insertnode.php" method="post">

			<div align="center" >
				当前节点的id:<input type="text" name="parent_id_text" ><br> <br> <input
					type="button" value="修改" > <input
					type="button" value="添加测试" onclick="onAdd()"> <input type="button"
					value="删除" 
					value="添加子节点" >
				<hr>
			</div>
			<div >
				修改的节点的名称是:<input type="text" name="upname" ><br>
				<br> <input type="button" value="确定修改" onclick="">
			</div>
			<div >
				添加的节点的名称是:<input type="text" name="addname" ><br>
				<br> <input type="submit" value="确定添加" onclick="return check()">
			</div>
		</form>

  服务器:

<?php
require_once ('db_fns.php');
session_start ();
$parent_id = $_POST ['parent_id_text'];
$node_name = $_POST ['addname'];
// echo $new_title;
db_insert_node($parent_id, $node_name);
?>