Question

基本上我有一个简单的表（mbs_users），其中包含：

    Field   Type    Collation   Attributes  Null    Default Extra   Action
id  int(5)          No  None    AUTO_INCREMENT                          
username    varchar(7)  utf8_general_ci     No  None                                 
password    varchar(7)  utf8_general_ci     No  None                                 
status  varchar(65) utf8_general_ci     No  None

用户从页面main_login .php

登录

<table width="300" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="form1" method="post" action="checklogin.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="3"><strong>Member Login </strong></td>
</tr>
<tr>
<td width="78">Username</td>
<td width="6">:</td>
<td width="294"><input name="myusername" type="text" id="myusername"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input name="mypassword" type="text" id="mypassword"></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td><input type="submit" name="Submit" value="Login"></td>
</tr>
</table>
</td>
</form>
</tr>
</table>

检查登录文件

<?php
$host="mysql.mywebsite.co.uk"; // Host name 
$username="myusernamexx/ Mysql username 
$password="password"; // Mysql password 
$db_name="mbs_orderstatus"; // Database name 
$tbl_name="mbs_users"; // Table name

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// username and password sent from form 
$myusername=$_POST['myusername']; 
$mypassword=$_POST['mypassword'];

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword"); 
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>

然后重定向到login_success.php

// Check if session is not registered , redirect back to main page. 
// Put this code in first line of web page. 
<? 
session_start();
if(!session_is_registered(myusername)){
header("location:main_login.php");
}
?>

<html>
<body>
Login Successful
</body>

如何获取与刚刚登录才能在此页面上显示的用户相关联的字段“状态”？

Answer 1

您已在登录页面上获得该信息。在登录页面，您还可以将数据设置到会话中。为什么不在会话中设置所需的数据？这样你就可以在其他页面上使用它。

所以在登录文件中：

$sql = "SELECT * FROM $tbl_name WHERE username = '$myusername' and password = '$mypassword'";
$result = mysql_query($sql);
$data = mysql_fetch_assoc($result);
$_SESSION['username'] = $data['username']
$_SESSION['status'] = $data['status']

在login_success中：

echo $_SESSION['status'];

显示与用户登录相关联的字段？

1 个答案: