当用户登录时,他们被重定向到member.php,下面是登录代码,后面跟着member.php代码。
login。
<?php
session_start ();
include 'core/init.php';
$username = '';
$password = '';
$dbusername = '';
$dbpassword = '';
if (isset($_POST['Email']) && isset($_POST['Password']))
{
$username = $_POST['Email'];
$password = md5($_POST['Password']);
$query = mysql_query("SELECT * FROM member WHERE Email ='$username' AND Password='$password'");
$numrow = mysql_num_rows ($query);
// user login
if ($numrow!=0)
{
while ($row = mysql_fetch_assoc($query))
{
$dbusername = $row['Email'];
$dbpassword = $row['Password'];
}
//Check to see if they match
if ($username==$dbusername&&$password==$dbpassword)
{
$_SESSION ['Email']=$username;
header("Location: member.php");
}
}
else
{
// admin login
$query2 = mysql_query("SELECT * FROM admin WHERE Email ='$username' AND Password ='$password'");
$numrow2 = mysql_num_rows ($query2);
if ($numrow2!=0)
{
while ($row = mysql_fetch_assoc($query2))
{
$dbusername = $row['Email'];
$dbpassword = $row['Password'];
}
//Check to see if they match
if ($username==$dbusername&&$password==$dbpassword)
{
$_SESSION ['Email']=$username;
header("Location: admin.php");
}
else{
echo "Incorrect password";
}
}
else{
if ($username!=$dbusername&&$password!=$dbpassword)
{die("That user does not exist!");
}
}
}
}
/*if ($numrow2!=0)
{
while ($row = mysql_fetch_assoc($query2))
{
$dbusername = $row['Email'];
if ($username!=$dbusername)
{die("That user does not exist!");
}
}
}
else
die("Please enter your email address and password");
*/
?>
member.php代码(我知道这很乱。对不起,现在只需要让它工作)
<div id="header">
<div id= "logout">
<?php
if(isset($_GET['username']) === true & empty ($_GET['username']) === false)
$username = $_GET ['username'];
if (user_exists($username) === true) {
echo "<p>Welcome, ".$_SESSION['Email']. "!<br><a href='logout.php'>Logout</a>n<a href='index.php'>Back to homepage</a></p>";
?></div>
</div>
<div id="main-content">
<?php
//get username from user id
$MemberID = user_id_from_username($username);
$profile_data =user_data($MemberID, 'Name','Email');//Need to pull out stuff from oddjob table
?>
<h1><?php echo $profile_data['Name']; ?>'s profile</h1>
<p><?php echo $profile_data['Email'];?></p>
<?php
} else {
echo '<p>Sorry, cannot find that user on system.</p>';
}
?>
现在我已经设置了member.php,这样如果我在URL中输入一个用户名(这是用户的电子邮件地址),它会显示一些特定于该用户的配置文件数据。
然而,当我作为一个用户登录,并得到重定向到member.php我只是看到一个空白页和用户名不显示在URL,只是一个错误消息说"未定义的变量:用户名"的用户,我不知道如何编辑这个,以便它的工作和成员被发送到他们自己的个人资料页面。
相关功能如下:
显然也 function logged_in() {
return (isset($_SESSION['MemberID'])) ? true : false; //Email
}
function user_data($MemberID){
$data = array();
$MemberID =(int)$MemberID;
$func_num_args = func_num_args();
$func_get_args = func_get_args();
if ($func_num_args >1) {
unset($func_get_args[0]);
$fields = '`' . implode('`,`', $func_get_args) . '`';
$data = mysql_fetch_assoc(mysql_query("SELECT $fields FROM `member` WHERE `MemberID` = $MemberID"));//expects parameter 1 to be resourse
return $data;
}
}
function user_id_from_username($username) {
$username = sanitize($username);
return mysql_result(mysql_query("SELECT `MemberID` FROM `member` WHERE `Email` = '$username'"),0, 'MemberID');
Init.php:
if (logged_in() ===true) {
$session_MemberID = $_SESSION['MemberID'];//undefined?
$user_data= user_data($session_MemberID,'MemberID','Name','Address','Postcode','DOB','Mobile','Email','Password','RepeatPassword');
exit();
}
老实说,我一直在看这个代码这么长时间了,我完全盲目/失去了如何解决这个问题。如果可以,请帮忙。
index . php
<div id= "login">
<form action="login.php" method="post">
<?php
if (logged_in() === true) {
echo "<p>Welcome, ".$_SESSION['Email']. "!<br><a href='logout.php'>Logout</a>";
}else
echo"<h4>Username: <input type='text' name='Email'><br>
Password: <input type='Password' name='Password'>
<input type='submit' value='Log In'><br>
<a href='register2.php'>Register?</a>
</form>"
?>
在member.php页面上,你尝试从$_GET中获取用户名,但是当你在login.php中重定向用户时,你没有传递任何参数。
要么只依赖于你设置的$_SESSION,要么改变你的重定向:
header('Location: member.php?username='.$username);
这个头部命令:
header("Location: member.php");
必须在头部上方。只有在没有向用户发送其他HTML代码时才能调用它。例如:
<?php
header("Location: member.php");
?>
<html>
<head>
</head>
<body>
</body>
</html>