Question

我正在尝试为我的网站制作注册和登录系统，当我点击登录时，我在登录文件中收到解析错误syntax error unexpected 'else'(T_ELSE)可能是什么问题？下面是包含代码的文件：

    <?php
//include config
require_once('includes/config.php');

//check if already logged in move to home page
if($user->is_logged_in()){ 
    header('Location: index.php'); 
}
}
else
{

echo "<a href=register.php>Register</a>  <a href=login.php>Login</a>";
}   

//process login form if submitted
if(isset($_POST['submit'])){

    $username = $_POST['username'];
    $password = $_POST['password'];

    if($user->login($username,$password)){
        $_SESSION['username'] = $username;
        header('Location: memberpage.php');
        exit;

    } else {
        $error[] = 'Wrong username or password or your account has not been activated.';
    }

}//end if submit

//define page title
$title = 'Login';

Answer 1

在}之后，两个花括号被关闭header('Location: index.php');。把它做成一个并尝试。

Answer 2

在其他地方删除}：

if($user->is_logged_in()){ 
    header('Location: index.php'); 
} else {
    echo "<a href=register.php>Register</a>  <a href=login.php>Login</a>";
}

Answer 3

你有一个额外的大括号。

更改

//check if already logged in move to home page
if($user->is_logged_in()){ header('Location: index.php'); 

}
  }

要

//check if already logged in move to home page
if($user->is_logged_in()){ header('Location: index.php'); 

}

Answer 4

在你的第一个else声明之前，你有一个双重括号;拿出一个：

if($user->is_logged_in()){ header('Location: index.php'); 

 }
   //} <- this is the extra one that shouldnt be there
  else
{

Answer 5

这是正确的代码，u两个大括号已关闭}

//check if already logged in move to home page
if($user->is_logged_in()){ header('Location: index.php'); 

  }
  else
  {

echo "<a href=register.php>Register</a>  <a href=login.php>Login</a>";
}**strong text**   

//process login form if submitted
if(isset($_POST['submit'])){

    $username = $_POST['username'];
    $password = $_POST['password'];

    if($user->login($username,$password)){
        $_SESSION['username'] = $username;
        header('Location: memberpage.php');
        exit;

    } else {
        $error[] = 'Wrong username or password or your account has not been activated.';
    }

}//end if submit

//define page title
$title = 'Login';

Answer 6

很好地格式化你的代码，你的代码中有两个大括号。

//include config
require_once('includes/config.php');

//check if already logged in move to home page
if($user->is_logged_in()){

    header('Location: index.php');

} else {

      echo "<a href=register.php>Register</a>  <a href=login.php>Login</a>";
  }   

//process login form if submitted
if(isset($_POST['submit'])){

    $username = $_POST['username'];
    $password = $_POST['password'];

    if($user->login($username,$password)){
        $_SESSION['username'] = $username;
        header('Location: memberpage.php');
        exit;

    } else {
        $error[] = 'Wrong username or password or your account has not been activated.';
    }

}//end if submit

//define page title
$title = 'Login';

Answer 7

你在if循环中添加了额外的}。请替换以下代码。

//include config
require_once('includes/config.php');

//check if already logged in move to home page
if($user->is_logged_in()){ 
   header('Location: index.php'); 
}
else
{
   echo "<a href=register.php>Register</a>  <a href=login.php>Login</a>";
}

Answer 8

这里有一个额外的结束括号：

if($user->is_logged_in()){ header('Location: index.php'); 

}
  }
....

这应该是：

if($user->is_logged_in())
{ 
    header('Location: index.php'); 
}
else
{
    echo "<a href=register.php>Register</a>  <a href=login.php>Login</a>";
}

旁注：

我建议您始终使用正确的格式，这有助于您找出这些问题。

解析错误：语法错误，第8行的C：\ xampp3 \ htdocs \ wb_html \ login.php中的意外“其他”（T_ELSE）

8 个答案: