';
$error = '';
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
$username = trim($_POST['username']);
$email = trim($_POST['email']);
$password = $_POST['password'];
if (empty($username) || empty($email) || empty($password)) {
$error = '用户名、邮箱和密码不能为空';
} elseif (empty($_POST['agree'])) {
$error = '必须同意 APP 审核标准才能注册';
} elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$error = '请输入有效的邮箱地址';
} else {
// 检查数据库连接是否为 PDO 对象
if (!($conn instanceof mysqli)) {
log_error('数据库连接错误: 连接不是MySQLi实例', __FILE__, __LINE__);
$error = '数据库连接错误，请检查配置';
} else {
try {
$stmt = $conn->prepare('SELECT id FROM developers WHERE username = ? OR email = ?');
$stmt->bind_param('ss', $username, $email);
$stmt->execute();
$stmt->store_result();
if ($stmt->num_rows > 0) {
$error = '用户名或邮箱已被注册';
} else {
$hashedPassword = password_hash($password, PASSWORD_DEFAULT);
$insertStmt = $conn->prepare('INSERT INTO developers (username, email, password) VALUES (?, ?, ?)');
if (!$insertStmt) {
log_error('插入准备失败: ' . $conn->error, __FILE__, __LINE__);
$error = '系统错误，请稍后再试';
} else {
$insertStmt->bind_param('sss', $username, $email, $hashedPassword);
if (!$insertStmt->execute()) {
log_error('插入执行失败: ' . $insertStmt->error, __FILE__, __LINE__);
$error = '系统错误，请稍后再试';
}
}
header('Location: login.php?register_success=1');
exit;
}
} catch (PDOException $e) {
$error = '注册时发生错误，请稍后再试';
}
}
}
}
?>
开发者注册