Query wird 2x eingetragen

[senger1985]

Kann mir bitte jemand sagen, warum er die Anfrage 2x an die Datenbank sendet, wenn ich auf den "Send Friendship Request"-Link klicke?

if($getid != $userid)
{
        $query =   mysqli_query($con, "SELECT id FROM friends WHERE (user1_id = '$userid' AND user2_id = '$getid') OR (user1_id = '$getid' AND user2_id = '$userid')");
        $numrows  =   mysqli_num_rows($query);
        if($numrows == 1)
        {
            echo "<a href=''>Already Friends</a> | <a href=''>Delete Friendship</a>";
        }
        else
        {
            $from_query   =   mysqli_query($con, "SELECT id FROM friends_req WHERE from_id = '$getid' AND to_id = '$userid'");
            $to_query     =   mysqli_query($con, "SELECT id FROM friends_req WHERE from_id = '$userid' AND to_id = '$getid'");
            $from         =   mysqli_num_rows($from_query);
            $to           =   mysqli_num_rows($to_query);

        if($from > 1)
        {
            echo "<a href=''>Ignore</a> | <a href=''>Accept Friendship</a>";
        }
        else if($to > 1)
        {
            echo "<a href='friends_request.php?action=cancel&id=$getid'>Cancel Request</a>";
        }
        else
        {
            echo "<a href='friends_request.php?action=send&id=$getid'>Send Friendship Request</a>";
        }
    }
}

<?php date_default_timezone_set("Europe/Berlin") ?>
<?php require_once("style/top.php"); ?>
<?php

    $action =   $_GET['action'];

    $getid  =   $_GET['id'];

    if($action  ==  'send')
    {
        mysqli_query($con, "INSERT INTO friends_req (id, from_id, to_id) VALUES ('', $userid, '$getid')");
    }

    if($action  ==  'cancel')
    {
        mysqli_query($con, "DELETE FROM friends_req WHERE from_id = '$userid' AND to_id = '$getid'");
    }

?>

[combie]

Weil.....
Weil das Statement doppelt ausgeführt wird.

Aber wie, wo und warum, KA.