求大神帮忙看看哪里出错了。
我想实现用户之间的通信，思想是建立一个消息表，然后把收件人用户名、发件人用户名、消息等放进去，然后谁想看发给自己的消息就去消息表中查找收件人是自己的记录。现在做到发消息这一块儿了，发完消息我发现 数据库消息表中并没有记录，应该是没有正确插入表中，大神帮忙看看是哪里错了，我也是刚接触PHP的，以前上课学的东西都是基础的，运用到实践中总是出很多问题。
下面附上相关的代码（ 其中sqltable是用户表，sqltable2是消息表，user_name是用户表中存储用户名的，s_name是消息表中存储发件人的，r_name是消息表中收件人）
config.php
<?php //常规参数设置$servername="localhost"; //主机名$sqlservername="root"; //mysql数据库用户名$sqlserverpws="lmy"; //mysql数据库密码$sqlname="lmy"; //数据库名$sqltable="user"; //username表名$sqltable2="message";$admin_name="lmy"; //管理员用户名$admin_pws="lmy"; //管理员密码?>
message.php
<?phpsession_start(); //一定要的if($_SESSION["name"]==""){echo "<script>location.href='index.php';</script>";exit;}//上面的要验证过滤的?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>给管理员发信</title></head><body><center> <form name="form1" method="post" action="message_cl.php"><table width="68%" height="304" border="0" cellpadding="0" cellspacing="1" bgcolor="#000000"> <tr align="center" bgcolor="#CCCCCC"> <td colspan="2">发信(message.php)||<a href="index.php">返回</a></td> </tr> <tr bgcolor="#CCCCCC"> <td align="right">收件人：</td> <td align="left"><input name="r_name" type="text" id="r_name"></td> </tr> <tr bgcolor="#CCCCCC"> <td align="right">消息内容：</td> <td align="left"><input name="content" type="text" id="content" size="40"></td> </tr> <tr align="center" bgcolor="#CCCCCC"> <td colspan="2"><input type="submit" name="Submit" value="发送"> <input type="reset" name="Submit" value="重置"></td> </tr> </table> </form></center></body></html>
message_cl.php
<?php session_start(); //一定要的if($_SESSION["name"]==""){echo "<script>location.href='index.php';</script>";exit;$_SESSION["name"]=$row[user_name];//这里是SESSION来验证用户的合法性}include("config.php"); //参数页面提取过来if(empty($_POST["r_name"])){echo ("<script type='text/javascript'> alert('请填写收件人！');history.go(-1);</script>");exit;}if(empty($_POST["content"])){echo ("<script type='text/javascript'> alert('请填写消息内容！');history.go(-1);</script>");exit;}$s_name=$_SESSION["name"];$r_names=$_POST["r_name"];$content=$_POST["content"];$add_time=date("Y-m-d");$is_open="no";$db=mysql_connect($servername,$sqlservername,$sqlserverpws);mysql_select_db($sqlname,$db) ;$sql="select * from $sqltable where user_name='$s_name'";$result=mysql_fetch_row(mysql_query($sql));if(!$result){echo ("<script type='text/javascript'> alert('无效的收件人！');history.go(-1);</script>");}else{$sql="insert into $sqltable2(s_name,r_name,content,add_time,is_open) values('$s_name','$r_name','$content','$add_time','$is_open') ";mysql_query($sql);echo ("<script type='text/javascript'> alert('发送成功');location.href='index.php';</script>");}?>回复讨论(解决方案)
message_cl.php 37 行
mysql_query($sql) or die(mysql_error());
$s_name=$_SESSION["name"];
$r_names=$_POST["r_name"];
$content=$_POST["content"];
输出一下，看有 值没
还有insert into $sqltable2(s_name,r_name,content,add_time,is_open) values('$s_name','$r_name','$content','$add_time','$is_open')
用SQL操作一下表，看结果是什么
哈哈，把分给我吧，已经远程协助解决。就是sql表里没有is_open字段而php又要插入is_open字段值，还有就是sql语句拼装问题
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