php - 登录并在php中注册没有响应

Question

我有一个供用户登录和注册的网站，当登录和注册在 2 个不同的页面时，该网站运行良好，现在我将它们都放在同一个页面中，html 代码如下：

<h2>Login</h2>
  </div>

  <form method="post" class="form-detail" action="index.php">
  	<?php include('errors.php'); ?>
  	<div style="padding-right: 20px; margin-left: -40px;" class="input-group">
  		<label>Username</label>
  		<input type="text" name="username" >
  	</div>
  	<div style="padding-right: 20px; margin-left: -40px;" class="input-group">
  		<label>Password</label>
  		<input type="password" name="password">
  	</div>
  	<div class="input-group">
  		<button type="submit" class="btn" name="login_user">Login</button>
  	</div>
  	
  </form>
			</div>
	


		

  <form class="form-detail" method="post" action="index.php">
  		<div class="header">
  	<h2>Register Now</h2>
  </div>
  	<?php include('errors.php'); ?>
  	<div class="input-group">
  	  <label>Username</label>
  	  <input type="text" name="username" value="<?php echo $username; ?>">
  	</div>
  	<div class="input-group">
  	  <label>Email</label>
  	  <input type="email" name="email" value="<?php echo $email; ?>">
  	</div>
  	<div class="input-group">
  	  <label>Password</label>
  	  <input type="password" name="password_1">
  	</div>
  	<div class="input-group">
  	  <label>Confirm password</label>
  	  <input type="password" name="password_2">
  	</div>
  	<div class="input-group">
  	  <button type="submit" class="btn" name="reg_user">Register</button>
  	</div>

执行该功能的 server.php 文件如下：

<?php
session_start();

// initializing variables
$username = "";
$email    = "";
$errors = array();

// connect to the database
$db = mysqli_connect('localhost', 'root', '', 'teia');

// REGISTER USER
if (isset($_POST['reg_user'])) {
  // receive all input values from the form
  $username = mysqli_real_escape_string($db, $_POST['username']);
  $email = mysqli_real_escape_string($db, $_POST['email']);
  $password_1 = mysqli_real_escape_string($db, $_POST['password_1']);
  $password_2 = mysqli_real_escape_string($db, $_POST['password_2']);

  // form validation: ensure that the form is correctly filled ...
  // by adding (array_push()) corresponding error unto $errors array
  if (empty($username)) { array_push($errors, "Username is required"); }
  if (empty($email)) { array_push($errors, "Email is required"); }
  if (empty($password_1)) { array_push($errors, "Password is required"); }
  if ($password_1 != $password_2) {
	array_push($errors, "The two passwords do not match");
  }

  // first check the database to make sure
  // a user does not already exist with the same username and/or email
  $user_check_query = "SELECT * FROM users WHERE username='$username' OR email='$email' LIMIT 1";
  $result = mysqli_query($db, $user_check_query);
  $user = mysqli_fetch_assoc($result);

  if ($user) { // if user exists
    if ($user['username'] === $username) {
      array_push($errors, "Username already exists");
    }

    if ($user['email'] === $email) {
      array_push($errors, "email already exists");
    }
  }

  // Finally, register user if there are no errors in the form
  if (count($errors) == 0) {
  	$password = md5($password_1);//encrypt the password before saving in the database

  	$query = "INSERT INTO users (username, email, password)
  			  VALUES('$username', '$email', '$password')";
  	mysqli_query($db, $query);
  	$_SESSION['username'] = $username;
  	$_SESSION['success'] = "You are now logged in";
  	header('location: index.php');
  }
}


if (isset($_POST['login_user'])) {
  $username = mysqli_real_escape_string($db, $_POST['username']);
  $password = mysqli_real_escape_string($db, $_POST['password']);

  if (empty($username)) {
  	array_push($errors, "Username is required");
  }
  if (empty($password)) {
  	array_push($errors, "Password is required");
  }

  if (count($errors) == 0) {
  	$password = md5($password);
  	$query = "SELECT * FROM users WHERE username='$username' AND password='$password'";
  	$results = mysqli_query($db, $query);
  	if (mysqli_num_rows($results) == 1) {
  	  $_SESSION['username'] = $username;
  	  $_SESSION['success'] = "You are now logged in";
  	  header('location: profile.php');
  	}else {
  		array_push($errors, "Wrong username/password combination");
  	}
  }
}

?>

最后error.php在下面

<?php  if (count($errors) > 0) : ?>
  <div class="error">
  	<?php foreach ($errors as $error) : ?>
  	  <p><?php echo $error ?></p>
  	<?php endforeach ?>
  </div>
<?php  endif ?>

早些时候它工作得很好，现在当我在同一页面中添加登录和注册时，登录和注册都不起作用，而是简单地加载页面，因为我是 php 新手，谁能告诉我我的代码有什么问题

标签： phphtmlsql

Answer 1

你确定吗; 您要<?php include('server.php'); ?>在 index.php 页面的顶部添加它吗？