Question

好吧所以我让用户登录然后“如果成功”我将它们重定向到index.php，我想从数据库中显示一些信息。

我的用户已经过验证，我可以登录，但我认为我遇到了会话问题。

当我在index.php页面上调用它时，用户名会话不会显示任何信息。

我是php的新手，随时随地学习。我花了最近两天浏览这个网站来寻找我的问题的答案，但找不到真正有用的东西。

这是代码

checklogin.php

<?php

    session_start();
    ob_start();
    include_once 'config.php';

    // Connect to server and select databse.
    try
    {
        $pdo_options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_EXCEPTION;
        $db = new PDO('mysql:host='.$host.';dbname='.$db_name.';charset=utf8', $username, $password);
    }
    catch(Exception $e)
    {
        die('Error : ' . $e->getMessage());
    }   

    // Define $myusername and $mypassword 
    $myusername = $_POST['myusername']; 
    $mypassword = $_POST['mypassword']; 

    // To protect MySQL injection
    $myusername = stripslashes($myusername);
    $mypassword = stripslashes($mypassword);

    $stmt = $db->query("SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'");

    // rowCount() is counting table row
    $count = $stmt->rowCount();

    // If result matched $myusername and $mypassword, table row must be 1 row
    if($count == 1){

        // Register $myusername, $mypassword and print "true"
        echo "true";
        $_SESSION['username'] = 'myusername';
        $_SESSION['password'] = 'mypassword';

    }
    else {
        //return the error message
        echo "<div class=\"alert alert-danger alert-dismissable\"><button type=\"button\" class=\"close\" data-dismiss=\"alert\" aria-hidden=\"true\">&times;</button>Wrong Username or Password</div>";
    }

    ob_end_flush();
?>

的index.php

<?php
  session_start();

  if(!isset($_SESSION['username'])){
    header("location:main_login.php");
  }
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Login</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Bootstrap -->
<link href="css/bootstrap.css" rel="stylesheet" media="screen">
<link href="css/main.css" rel="stylesheet" media="screen">
</head>
<body>
<div class="container">
  <div class="form-signin">
    <div class="alert alert-success">You have been <strong>successfully</strong> logged in <?php echo $_SESSION['username']; ?>.</div>
    <a href="logout.php" class="btn btn-default btn-lg btn-block">Logout</a> </div>
</div>
<!-- /container -->
</body>
</html>

我真的很感激任何帮助或链接到可以提供帮助的文章。

由于

肖恩

Answer 1

只需更改$ _SESSION [＆＃39;用户名＆＃39;] =＆＃39; myusername＆＃39 ;;到$ _SESSION [＆＃39;用户名＆＃39;] = $ myusername;

PHP中的会话无法正常工作

1 个答案: