当我更改页面时,如何使我的用户保持登录状态?PHP


how can i keep my user logged in when i change pages ? PHP

我正在使用登录页面:

<?php
session_start();
include_once 'dbconnect.php';
if(isset($_SESSION['user'])!="")
{
    header("Location: home.php");
}
if(isset($_POST['btn-login']))
{
    $email = mysql_real_escape_string($_POST['email']);
    $upass = mysql_real_escape_string($_POST['pass']);
    $res=mysql_query("SELECT * FROM users WHERE email='$email'");
    $row=mysql_fetch_array($res);
    if($row['password']==md5($upass))
    {
        $_SESSION['user'] = $row['user_id'];
        header("Location: home.php");
    }
    else
    {
        ?>
        <script>alert('wrong details');</script>
        <?php
    }
}
?>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ورود</title>
<link rel="stylesheet" href="style.css" type="text/css" />
</head>
<body>
<center>
<div id="login-form">
<form method="post">
<table align="center" width="30%" border="0">
<tr>
<td><input type="text" name="email" placeholder="Your Email" required /></td>
</tr>
<tr>
<td><input type="password" name="pass" placeholder="Your Password" required /></td>
</tr>
<tr>
<td><button type="submit" name="btn-login">ورود</button></td>
</tr>
<tr>
<td><a href="register.php">ثبت نام</a></td>
</tr>
</table>
</form>
</div>
</center>
</body>
</html>

如果我输入正确的用户名和密码,我会进入欢迎页面,但我只是在那个页面登录的,当我进入另一个页面时,我又像一个访客用户了。

我如何修复它,并保持登录每一个地方

在每个页面的顶部开始会话将解决您的问题。

然后检查$_SESSION['user']。