[英]I want correct message to be displayed when user clicks on email activation link multiple times
我正在为我的A级课程编写编程课程,但是我陷入了一个问题。 我希望你们中的一个能帮助我。
我正在设置成员系统,目前我处于电子邮件激活阶段。 通过将php和mysqli编码与连接的数据库一起使用,我已经能够设置电子邮件激活链接正常工作,以便当用户单击激活链接时,它通过将“ Active”数据库字段设置为“ 0”来激活用户的帐户。为“ 1”。
我唯一的问题是,如果用户再次单击电子邮件中的激活链接,因为该用户已经处于活动状态,我希望它显示消息“此帐户已被激活”; 这样用户就无法再次激活该帐户。
但是我无法显示此消息。 即使用户已经激活了帐户,它仍然显示消息“帐户已激活”。 有人知道我在做什么错吗?
下面是我的代码:
<?php
$user_to_be_activated = $_GET['user'];
$code_to_be_matched = $_GET['code'];
$code_activated = 1;
// don't use $mysqli->prepare here
$query = "SELECT TeacherUsername, Active, Code FROM Teacher WHERE TeacherUsername = ? AND Code = ? ";
// prepare query
$stmt=$mysqli->prepare($query);
// You only need to call bind_param once
$stmt->bind_param("ss",$user_to_be_activated, $code_to_be_matched);
// execute query
$stmt->execute();
// get result and assign variables (prefix with db)
$stmt->bind_result($dbTeacherUsername, $dbActive, $dbCode);
//get number of rows
$stmt->store_result();
$counting = $stmt->num_rows();
if($counting == '1')
{
if($dbActive == '1')
{
echo "This Account has already been Activated";
}
else{
$updatesql = "UPDATE Teacher SET Active = ? WHERE TeacherUsername = ? AND Code = ?";
$update = $mysqli->prepare($updatesql);
$update->bind_param("sss", $code_activated, $user_to_be_activated, $code_to_be_matched);
$update->execute();
$update->close();
echo "Account is Activated";
}
}
else
{
echo "The Code and Username doesn't match! Account is not Activated.";
}
?>
<?
$stmt->store_result();
$counting = $stmt->num_rows();
if($counting == '1')
{
$stmt->fetch(); //added fetch here
if($dbActive == '1')
{
echo "This Account has already been Activated";
}
else{
$updatesql = "UPDATE Teacher SET Active = ? WHERE TeacherUsername = ? AND Code = ?";
$update = $mysqli->prepare($updatesql);
$update->bind_param("sss", $code_activated, $user_to_be_activated, $code_to_be_matched);
$update->execute();
$update->close();
echo "Account is Activated";
}
}
else
{
echo "The Code and Username doesn't match! Account is not Activated.";
}
?>
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