Question

我制作了一个简单的登录和注册系统（http://dak.esy.es/login/），并希望从MySQL数据库的同一行中检索其他信息。目前，只保存用户名（如$_SESSION['username']），这是在登录页面上输入的内容。在数据库中，我要保存的数据是id，fullname和email - 最好采用与用户名（$_SESSION['(name here)']）相同的格式。我已经有一个文件连接到名为db.php的数据库。如果有人能提供代码，我会非常高兴。我login.php页面上的代码是：

  <?php
require('db.php');
session_start();
// If form submitted, insert values into the database.
if (isset($_POST['username'])){
    $username = $_POST['username'];
    $password = $_POST['password'];
    $username = stripslashes($username);
    $username = mysql_real_escape_string($username);
    $password = stripslashes($password);
    $password = mysql_real_escape_string($password);
//Checking is user existing in the database or not
    $query = "SELECT * FROM `users` WHERE username='$username' and password='".md5($password)."'";
    $result = mysql_query($query) or die(mysql_error());
    $rows = mysql_num_rows($result);

    if($rows==1){
        $_SESSION['username'] = $username;
        header("Location: ./index.php"); // Redirect user to index.php
    }
        else{
            echo "<div class='form'><br/><h3>Username or password incorrect.</h3><br/>Click here to <a href='login.php'>try again</a></div>";
        }
}
?>

非常感谢。

Answer 1

目前尚不清楚需求是什么：但我希望，您希望db row中的每个值都作为会话.. 希望您在登录后有会话：`$ _SESSION ['username'];

    $conn = mysqli_connect($servername, $username, $password);

    // Check connection
    if (!$conn) {
        die("Connection failed: " . mysqli_connect_error());
    }

    $query = "SELECT * FROM `tbl_login` WHERE `username` = ".$_SESSION['username'];
$result = mysqli_query($conn, $sql);
$row = mysqli_fetch_assoc($result);
$_SESSION['id'] = $row["id"];
$_SESSION['name'] = $row["fullname"];
$_SESSION['email'] = $row["email"];
mysqli_close($conn);

或用于设置会话以及登录验证：

$conn = mysqli_connect($servername, $username, $password);

// Check connection
if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}

$query = "SELECT * FROM `tbl_login` WHERE `username` = ".$_POST['username']." AND `password`= ".$POST['password'];

$result = mysqli_query($conn, $query);
$row = mysqli_fetch_assoc($result);
if(isset($row)){
    $_SESSION['id'] = $row["id"];
    $_SESSION['username'] = $row["username"];
    $_SESSION['name'] = $row["fullname"];
    $_SESSION['email'] = $row["email"];
} else {
    redirect('login.php');   //reload login page on failure
}
mysqli_close($conn);

这是基本代码，您可以将此代码拆分为MVC。

从行中获取MySQL数据库的另一个值

1 个答案: