php登录注册完整代码

Username:

Password:

Email:

完整代码实现

在本文最后，我们将用完整的PHP代码实现用户注册和登录功能，其中包括：

1. 用户注册：包括表单提交和存储到MySQL数据库中。

2. 用户登录：包括表单提交和验证用户名和密码是否匹配。

session_start();

if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['register'])) {

$confirm_password = $_POST['confirm_password'];

if ($password == $confirm_password) {

$mysqli = new mysqli("localhost", "username", "password", "database");

if ($mysqli->connect_errno) {

echo "Failed to connect to MySQL: " . $mysqli->connect_error;

}

$stmt = $mysqli->prepare("INSERT INTO user(username, password, email) VALUES (?, ?, ?)");

$stmt->bind_param("sss", $username, $password, $email);

$stmt->execute();

$stmt->close();

$mysqli->close();

echo "Registration Successful!";

} else {

echo "Passwords do not match!";

} elseif ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['login'])) {

$stmt = $mysqli->prepare("SELECT * FROM user WHERE username = ? AND password = ?");

$stmt->bind_param("ss", $username, $password);

$result = $stmt->get_result();

if ($result->num_rows == 1) {

$_SESSION['username'] = $username;

header("Location: home.php");

echo "Invalid username or password!";

?>

User Registration

Confirm Password:

User Login

以上就是PHP登录注册完整代码的实现方法。通过本文的介绍，读者可以了解到PHP如何实现用户认证、用户注册和用户登录。在实际开发中，可以根据需求进行修改和扩展。