我在设置Cookie时遇到问题。我有一个注册和登录表单，用户被重定向到另一个页面，其中包括register.php，这将向登录的用户和访客访问者（未登录）显示不同的数据。但注册后，登录标题菜单仍然会注册并登录
<?php
$con = mysqli_connect("localhost","root","","findfriends") or die ("Connection not established");
?>
<?php
if(isset($_POST['reg'])){
$fn=strip_tags(@$_POST['fname']);
$ln=strip_tags(@$_POST['lname']);
$un=strip_tags(@$_POST['username']);
$em=strip_tags(@$_POST['email']);
$pswd=strip_tags(@$_POST['password']);
$d= date("Y-m-d");
$reg_query = "INSERT INTO users (userid,username,first_name,last_name,email,password,sign_up_date,activated,bio,profile_photo,closed) VALUES ('','{$un}','{$fn}','{$ln}','{$em}','{$pswd}','{$d}','0','What you do?','','no')";
$reg_run = mysqli_query($con,$reg_query);
setcookie('user',$un,time()+3600*24*365);
echo "The cookie has been set.";
header("Location:main.php");
if(isset($_POST['login'])){
$log_que = "SELECT * FROM users WHERE username = '$un' AND password = '$pswd' ";
$log_run = mysqli_query($con, $log_que);
$row = mysqli_fetch_array($log_run);
$un_db = $log_row['username'];
$pswd_db = $log_row['password'];
if($un == $un_db && $pswd == $pswd_db)
{
echo "LOGGED IN!";
setcookie('user',$un,time()+3600*24*365);
header("Location: main.php");
}
}
?>
header.php <!DOCTYPE html>
<html>
<head>
<title>findfriends</title>
<script src="js/main.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="./css/style.css"/>
</head>
<body>
<div class="headerMenu">
<div id="wrapper">
<div class="logo">
<img src="./img/logo.gif"/>
</div>
<div class="search_box">
<form action="searchresults.php" method="post" name="search">
<table>
<tr>
<td>
<input type="text" name="search" placeholder="Search ..."/>
</td>
<td>
<input type="image" src="./img/search-icon.png" alt="submit" />
</td>
</tr>
</table>
</form>
</div>
<?php
if(isset($_COOKIE['user'])){
echo '
<ul class="dd">
<li><a href="main.php" >Home</a>
</li>
<li><a href="' . $user . '">Profile</a>
</li>
<li><a href="my_messages.php">Inbox' . $unread_numrows . '</a>
</li>
<li><a href="#">Management</a>
<ul><li><a href="account_settings.php">Settings</a>
</li>
<li><a href="logout.php">Logout</a>
</li>
</ul>
</li>
</ul>';
}
else
{
echo '
<ul class="dd">
<li><a href="register.php" >Sign Up</a>
</li>
<li><a href="register.php">Login</a>
</li>
</ul>';
}
?>
</div>
</div>
</body>
</html>
class Mcrud extends CI_Model {
public function record_count() {
return $this->db->count_all("crud");
}
function view() {
$ambil = $this->db->from('crud')->order_by('idcrud', 'DESC')->limit(5, 3)->get();
if ($ambil->num_rows() > 0) {
foreach ($ambil->result() as $data) {
$hasil[] = $data;
}
$ambil->free_result();
return $hasil;
}
}
答案 0 :(得分：0)
如果在标题功能之前输出，则需要设置输出缓冲区 在第一行添加
<?php ob_start(); ?>
最后
<?php ob_flush(); ?>
答案 1 :(得分：0)
您必须在login.php / login.html文件中添加if else语句 您网页的每个文件
if($user===not_logged_in){
header("Location: login.php");
} else{
//do somthing else
}