Question

我正在制作一个激活页面，在用户注册到网站后会被邮寄给用户，但我的代码中有错误：

Undefined index: ActivationKey

用户将获得的链接将是

website-url/activate.php?Username=user&ActivationKey=foobar

它给出了这行代码的错误：

$ActivationKey = $_SESSION['ActivationKey'];

我的代码如下：

<?PHP



//Include database connection details
require_once('config.php');

//Array to store validation errors
$errmsg_arr = array();

//Validation error flag
$errflag = false;

//Connect to mysql server
$link = mysql_connect("127.0.0.1","root","XXX");
if(!$link) {
    die('Failed to connect to server: ' . mysql_error());
}

//Select database
$db = mysql_select_db("monitron");
if(!$db) {
    die("Unable to select database");
}


//Start session
session_start();    


//check if Username is already in session and
//use it if it is
//else, grab it from GET
//use it from GET
if(!empty($_SESSION['Username'])){
$Username = $_SESSION['Username'];
}else if(isset($_GET['Username'])){
$_SESSION['Username'] = $_GET['Username'];
$Username = $_SESSION['Username'];
};


//Grab activationkey from session.

if(isset($_GET['ActivationKey'])){
$_SESSION['ActivationKey'] = $_GET['ActivationKey'];
};

$ActivationKey = $_SESSION['ActivationKey'];

echo $ActivationKey;
echo $Username;

//Create update query to update activation status
$qry = "UPDATE login SET ActivationStatus = 'Active' WHERE Username = '$Username'";
$result = @mysql_query($qry)

?>

如果有人可以帮我解决这个问题，我会很感激：）

Answer 1

你有行

if(isset($_GET['ActivationKey'])){
    $_SESSION['ActivationKey'] = $_GET['ActivationKey'];
};

$ActivationKey = $_SESSION['ActivationKey'];

但是，如果if语句永远不成立，那么没有$ _SESSION ['ActivationKey']，那就是PHP抱怨的错误。

获得“未定义的索引”错误

1 个答案: