PHP registration/login 错误
PHP registration/login error
我正在尝试创建 register/login 系统。但是,我遇到了一些问题。我无法理解我的代码中的错误在哪里。
这是我的 server.php & register.php。浏览器显示错误在第 65 行。"Parse error: syntax error, unexpected ';'"。在我看来 ;必须在那里。
<?php
session_start();
$username = "";
$email = "";
$errors = array();
// Connect to the database
$db = mysqli_connect('localhost', 'root', '', 'lead2pro');
// If the register button is clicked
if(isset($_POST['register'])) {
$username = mysqli_real_escape_string($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, $_POST['password_2']);
// Ensure that form fields are filled properly
if(empty($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");
}
// If there are no errors, save user to database
if(count($errors) == 0) {
$password = md5($password_1); // Hashin the password before storing in database
$sql = "INSERT INTO users (username, email, password) VALUES('$username', '$email', '$password')";
mysqli_query($db, $sql);
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: ../system.php'); // Redirect to game location
}
}
// log user in from login page
if(isset($_POST['login'])) {
$username = mysqli_real_escape_string($db, $_POST['username']);
$password = mysqli_real_escape_string($db, $_POST['password']);
// Ensure that form fields are filled properly
if(empty($username)) {
array_push($errors, "Username is required!");
}
if(empty(password)) {
array_push($errors, "Password is required!");
}
if(count($errors) == 0){
$password = md5($password); // Encrypt password before comparing this one with the one in database
$query = "SELECT * FROM users WHERE username = '$username' AND password = '$password'";
$result = mysqli_query($db, $query);
$if (mysqli_num_rows($result) == 1) {
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: ../system.php'); // Redirect to main page location
} else {
array_push($errors, "Wrong username/password combination");
header('location: ../php/login.php');
}
}
}
//logout
if(isset($_GET['logout'])) {
session_destroy();
unset($_SESSION['username']);
header('location: ../php/login.php');
}
?>
这是我的 register.php
<?php include('../includes/server.php');?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Manager | Register</title>
<link rel="stylesheet" href="../css/reg.css">
</head>
<body>
<div class="header">
<h2>Register</h2>
</div>
<!-- Display validation errors here! -->
<?php include('../includes/errors.php'); ?>
<form action="register.php" method="post">
<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="text" 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" name="register" class="btn">Register</button>
</div>
<p>
Already a member? <a href="login.php">Sign in</a>
</p>
</form>
</body>
</html>
问题出在另一行:
$if (mysqli_num_rows($result) == 1) {
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: ../system.php'); // Redirect to main page location
}
那个$
不应该在if
前面。
我正在尝试创建 register/login 系统。但是,我遇到了一些问题。我无法理解我的代码中的错误在哪里。 这是我的 server.php & register.php。浏览器显示错误在第 65 行。"Parse error: syntax error, unexpected ';'"。在我看来 ;必须在那里。
<?php
session_start();
$username = "";
$email = "";
$errors = array();
// Connect to the database
$db = mysqli_connect('localhost', 'root', '', 'lead2pro');
// If the register button is clicked
if(isset($_POST['register'])) {
$username = mysqli_real_escape_string($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, $_POST['password_2']);
// Ensure that form fields are filled properly
if(empty($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");
}
// If there are no errors, save user to database
if(count($errors) == 0) {
$password = md5($password_1); // Hashin the password before storing in database
$sql = "INSERT INTO users (username, email, password) VALUES('$username', '$email', '$password')";
mysqli_query($db, $sql);
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: ../system.php'); // Redirect to game location
}
}
// log user in from login page
if(isset($_POST['login'])) {
$username = mysqli_real_escape_string($db, $_POST['username']);
$password = mysqli_real_escape_string($db, $_POST['password']);
// Ensure that form fields are filled properly
if(empty($username)) {
array_push($errors, "Username is required!");
}
if(empty(password)) {
array_push($errors, "Password is required!");
}
if(count($errors) == 0){
$password = md5($password); // Encrypt password before comparing this one with the one in database
$query = "SELECT * FROM users WHERE username = '$username' AND password = '$password'";
$result = mysqli_query($db, $query);
$if (mysqli_num_rows($result) == 1) {
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: ../system.php'); // Redirect to main page location
} else {
array_push($errors, "Wrong username/password combination");
header('location: ../php/login.php');
}
}
}
//logout
if(isset($_GET['logout'])) {
session_destroy();
unset($_SESSION['username']);
header('location: ../php/login.php');
}
?>
这是我的 register.php
<?php include('../includes/server.php');?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Manager | Register</title>
<link rel="stylesheet" href="../css/reg.css">
</head>
<body>
<div class="header">
<h2>Register</h2>
</div>
<!-- Display validation errors here! -->
<?php include('../includes/errors.php'); ?>
<form action="register.php" method="post">
<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="text" 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" name="register" class="btn">Register</button>
</div>
<p>
Already a member? <a href="login.php">Sign in</a>
</p>
</form>
</body>
</html>
问题出在另一行:
$if (mysqli_num_rows($result) == 1) {
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: ../system.php'); // Redirect to main page location
}
那个$
不应该在if
前面。