我是PHP的新手，并尝试实现一种可以将用户添加到数据库的方法，我正在遵循教程，在我开始工作之前，它工作正常，但是现在，它停止于以下语句：
//Check the form token is valid
else if($_POST['formToken'] != $_SESSION['formToken'])
{
$message = 'Invalid form submission';
}
我错过了什么吗？完整代码：
添加用户.php
<?php
//Begin our session
session_start();
//set a form token
$formToken = md5( uniqid('auth', true) );
//set the session form token
$_SESSION['formToken'] = $formToken;
?>
<html>
<head>
<title>Login</title>
</head>
<body>
<h2>Add User</h2>
<form action="addUserSubmit.php" method="post">
<fieldset>
<p>
<label for="Username">Username</label>
<input tupe="text" id="Username" name="Username" value="" maxlength="20" />
</p>
<p>
<label for="Password">Password</label>
<input tupe="text" id="Password" name="Password" value="" maxlength="20" />
</p>
<p>
<input type="hidden" name="formToken" vale="<?php echo $formToken; ?>" />
<input type="submit" value="$rarr; Login" />
</p>
</fieldset>
</form>
</body>
</html>
addUserSubmit.php
<?php
//begin our session
session_start();
//Check if username, password and form token have been sent
if(!isset($_POST['Username'], $_POST['Password'], $_POST['formToken']))
{
$message = 'Please enter a valid username and password';
}
//Check the form token is valid
else if($_POST['formToken'] != $_SESSION['formToken'])
{
$message = 'Invalid form submission';
}
//Check the username is the correct length
else if (strlen($_POST['Username']) > 20 || strlen($_POST['Usernamw']) < 4)
{
$message = 'Incorrect Username lenght, please try again';
}
//Check the username only has alpha numeric characters
else if (ctype_alnum($_POST['Username']) != true)
{
$message = "Username must be alpha numeric";
}
else if (ctype_alnum($_POST['Password']) != true)
{
$message = "Password must be alpha numeric";
}
else
{
//Enter the data into the database
$username = filter_var($_POST['Username'], FILTER_SANITIZE_STRING);
$password = filter_var($_POST['Password'], FILTER_SANITIZE_STRING);
//Encrypt the password
$password = shal($password);
//Connect to the database
$SQLusername = "name";
$SQLpassword = "password";
$SQLhostname = "localhost";
$databaseName = "jfitness";
try
{
//connection to the database
$dbhandle = mysql_connect($SQLusername, $SQLpassword, $SQLhostname)
or die("Unable to connect to MySQL");
echo "Connected to MySQL<br>";
//select a database to work with
$selected = mysql_select_db($databaseName, $dbhandle)
or die("Could not select database");
$sql = "INSERT INTO
customers (Username, Password)
VALUES
('$_POST[$username]','$_POST[$password]')";
if(!mysql_query($sql, $dbhandle))
{
die('Error: ' . mysql_error());
}
echo "1 record added";
//close the connection
mysql_close($dbhandle);
}
catch (Exception $ex)
{
}
}
?>
<html>
<head>
<title>Login</title>
</head>
<body>
<p><?php echo $message; ?>
</body>
</html>
我认为
有一个错字..尝试改变，
<input type="hidden" name="formToken" vale="<?php echo $formToken; ?>" />
自：
<input type="hidden" name="formToken" value="<?php echo $formToken; ?>" />