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<?php
require_once('connection.inc');
header('Refresh: 3; URL=http://scipy.in');
if(isset($_GET) && isset($_GET['key'])){
unsubscribeEmailid($_GET['key']);
}else{
echo 'wrong link';
}
function unsubscribeEmailid($email_id_hash)
{
global $conn;
// try to update user with specified information
$sql = "SELECT email, unsubscribe, email_hash FROM sent_email WHERE email_hash ='".$email_id_hash."'";
$result = $conn->query($sql);
$row = $result->fetch_assoc();
if($row != NULL){
if($row['unsubscribe'] == 0 && $row['email_hash'] == $email_id_hash){
$query="UPDATE sent_email SET unsubscribe = 1 WHERE email_hash ='". $email_id_hash."'";
$result = $conn->query($query);
echo '<br>Thank You for unsubscription';
echo '<br><br>If you are not automatically redirected, click here: <a href="http://scipy.in">SciPy India 2015</a>.';
}
elseif($row['unsubscribe'] == 1 && $row['email_hash'] == $email_id_hash){
echo '<br>You are already unsubscribed!';
echo '<br><br>If you are not automatically redirected, click here: <a href="http://scipy.in">SciPy India 2015</a>.';
}
else{
echo '<br>You are not a subscriber!';
echo '<br><br>If you are not automatically redirected, click here: <a href="http://scipy.in">SciPy India 2015</a>.';
}
}else{
echo "Wrong Link please try again";
}}
$conn->close();
?>
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