Question

我正在尝试开发一个登录表单，所以我上网并选择了一个代码。我用一个带有字段的表“ login”创建了一个名为“ company”的数据库； ID，用户名和密码。我已经在表中保存了一些条目。

当我尝试登录时，得到响应； 页面无法正确重定向； Firefox已检测到服务器正在以永远无法完成的方式重定向对该地址的请求。有时可能是由于禁用或拒绝接受Cookie导致此问题。

我不知道怎么了。下面是我的代码： index.php

<?php
include('login.php'); // Includes Login Script

if(isset($_SESSION['login_user'])){
header("location: profile.php");
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Login Form in PHP with Session</title>
<link href="style.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="main">
<h1>PHP Login Session Example</h1>
<div id="login">
<h2>Login Form</h2>
<form action="" method="post">
<label>UserName :</label>
<input id="name" name="username" placeholder="username" type="text">
<label>Password :</label>
<input id="password" name="password" placeholder="**********" type="password">
<input name="submit" type="submit" value=" Login ">
<span><?php echo $error; ?></span>
</form>
</div>
</div>
</body>
</html>

login.php

<?php
session_start(); // Starting Session
$error=''; // Variable To Store Error Message
if (isset($_POST['submit'])) {
if (empty($_POST['username']) || empty($_POST['password'])) {
$error = "Username or Password is invalid";
}
else
{
// Define $username and $password
$username=$_POST['username'];
$password=$_POST['password'];
// Establishing Connection with Server by passing server_name, user_id and password as a parameter
$connection = mysqli_connect("localhost", "root", "", "company");
// To protect MySQL injection for Security purpose

// SQL query to fetch information of registerd users and finds user match.
$query = mysqli_query($connection, "select * from login where password='$password' AND username='$username'");
$rows = mysqli_num_rows($query);
if ($rows == 1) {
$_SESSION['login_user']=$username; // Initializing Session

} else {
$error = "Username or Password is incorrect";
}
mysqli_close($connection); // Closing Connection
}
}
?>

logout.php

<?php
session_start();
if(session_destroy()) // Destroying All Sessions
{
header("Location: index.php"); // Redirecting To Home Page
}
?>

profile.php

<?php
include('session.php');
?>
<!DOCTYPE html>
<html>
<head>
<title>Your Home Page</title>
<link href="style.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="profile">
<b id="welcome">Welcome : <i><?php echo $login_session; ?></i></b>
<b id="logout"><a href="logout.php">Log Out</a></b>
</div>
</body>
</html>

session.php

<?php
// Establishing Connection with Server by passing server_name, user_id and password as a parameter
$connection = mysqli_connect("localhost", "root", "","company");
session_start();// Starting Session
// Storing Session
$user_check=$_SESSION['login_user'];
// SQL Query To Fetch Complete Information Of User
$ses_sql=mysqli_query("select username from login where username='$user_check'", $connection);
$row = mysqli_fetch_assoc($ses_sql);
$login_session =$row['username'];
if(!isset($login_session)){
mysqli_close($connection); // Closing Connection
header('Location: index.php'); // Redirecting To Home Page
}
?>

谢谢。

Answer 1

问题解决了。

我已连接到具有更多字段的另一个表，即； ID，名字，用户名和密码。

我编辑了session.php并使用Firstname（用户名是$ user_check）更改了mysqli_query。我现在正在打印登录用户的名称。

谢谢你们。

会话代码在php中不起作用

1 个答案: