Plugin Update Question

[KGodel]

Hey guys!

I am using a plugin from a 3.8.x series of vBulletin on VB4 with no errors as far as it getting the job done. It's pretty simple an adds a hook when you save a user. Th plugin can be found here:

https://vborg.vbsupport.ru/showthread.php?t=157919

Now, because of how I sort usergroups (I use an HTML comment) I have altered it a bit to trim off that HTML. However, upon saving I am getting errors evaluating the "foreach" statements in the hook. I'm not expert, but if anyone could give me a hint as to what in these statement might be giving me eval() errors, that'd be great!

PHP Code:

if ($vbulletin->GPC['userid'])
{
    $usernote_message = '';
    
    function fetch_usergroup_title($usergroupid)
    {
        global $vbulletin;
        return $vbulletin->usergroupcache["$usergroupid"]['title'];
    }
    
    //////////// Check for Primary Group Change ////////////
    if ($vbulletin->GPC['user']['usergroupid'] != $userinfo['usergroupid'])
    {
        $usernote_message .= construct_phrase($vbphrase['primary_group_changed_x_to_y'],substr(fetch_usergroup_title($userinfo['usergroupid']), 16),substr(fetch_usergroup_title($vbulletin->GPC['user']['usergroupid']), 16));
    }

    /////////// Check for Member (Secondary) Group Change ////////////
    
    // Find NEW member group IDs (Added Member Groups)
    foreach ($vbulletin->GPC['user']['membergroupids'] AS $newmembergroupid)
    {
        if (!in_array( $newmembergroupid, explode(',', $userinfo['membergroupids']) ) )
        {
            $addedmembergroupids[] = $newmembergroupid;
        }
    }
    
    // Find OLD member group IDs (Removed Member Groups)
    foreach (explode(',', $userinfo['membergroupids']) AS $oldmembergroupid)
    {
        if (intval($oldmembergroupid) AND !in_array( $oldmembergroupid, $vbulletin->GPC['user']['membergroupids'] ))
        {
            $removedmembergroupids[] = $oldmembergroupid;
        }
    }

    foreach ($addedmembergroupids AS $membergroupid)
    {
        $usernote_message .= construct_phrase($vbphrase['added_to_secondary_group_x'],substr(fetch_usergroup_title($membergroupid), 16));
    }
    
    foreach ($removedmembergroupids AS $membergroupid)
    {
        $usernote_message .= construct_phrase($vbphrase['removed_from_secondary_group_x'],substr(fetch_usergroup_title($membergroupid), 16));
    }

    // If we have a message then something was changed, create the log entry
    if ($usernote_message != '')
    {
        //Insert a new usernote
        $db->query_write("
                INSERT INTO " . TABLE_PREFIX . "usernote
                (message, dateline, userid, posterid, title, allowsmilies)
                VALUES ('" . $db->escape_string($usernote_message) . "', " . TIMENOW . ", ".$userinfo['userid'].", " . $vbulletin->userinfo['userid'] . ", '".$db->escape_string($vbphrase['usergroup_changed'])."', 1)
            ");
    }

} 


[kh99]

An error from foreach is usually because what you're giving it isn't an array, and I can see a couple places in the code where if conditions aren't met, nothing gets added to the array so it will end up not being defined at all. So you could make sure they are defined as empty array, like for instance:

    // Find OLD member group IDs (Removed Member Groups) 
    $addedmembergroupids = array();    
    foreach (explode(',', $userinfo['membergroupids']) AS $oldmembergroupid) 
    {

[KGodel]

I added two such lines am still getting another error. Since its run as a hook I am not sure what line in the code exactly is giving me the issue, but the changed code is now:

PHP Code:

if ($vbulletin->GPC['userid'])
{
    $usernote_message = '';
    
    function fetch_usergroup_title($usergroupid)
    {
        global $vbulletin;
        return $vbulletin->usergroupcache["$usergroupid"]['title'];
    }
    
    //////////// Check for Primary Group Change ////////////
    if ($vbulletin->GPC['user']['usergroupid'] != $userinfo['usergroupid'])
    {
        $usernote_message .= construct_phrase($vbphrase['primary_group_changed_x_to_y'],substr(fetch_usergroup_title($userinfo['usergroupid']), 16),substr(fetch_usergroup_title($vbulletin->GPC['user']['usergroupid']), 16));
    }

    /////////// Check for Member (Secondary) Group Change ////////////
    
    // Find NEW member group IDs (Added Member Groups)
    $addedmembergroupids = array();
    foreach ($vbulletin->GPC['user']['membergroupids'] AS $newmembergroupid)
    {
        if (!in_array( $newmembergroupid, explode(',', $userinfo['membergroupids']) ) )
        {
            $addedmembergroupids[] = $newmembergroupid;
        }
    }
    
    // Find OLD member group IDs (Removed Member Groups)
    $removedmembergroupids = array();
    foreach (explode(',', $userinfo['membergroupids']) AS $oldmembergroupid)
    {
        if (intval($oldmembergroupid) AND !in_array( $oldmembergroupid, $vbulletin->GPC['user']['membergroupids'] ))
        {
            $removedmembergroupids[] = $oldmembergroupid;
        }
    }

    foreach ($addedmembergroupids AS $membergroupid)
    {
        $usernote_message .= construct_phrase($vbphrase['added_to_secondary_group_x'],substr(fetch_usergroup_title($membergroupid), 16));
    }
    
    foreach ($removedmembergroupids AS $membergroupid)
    {
        $usernote_message .= construct_phrase($vbphrase['removed_from_secondary_group_x'],substr(fetch_usergroup_title($membergroupid), 16));
    }

    // If we have a message then something was changed, create the log entry
    if ($usernote_message != '')
    {
        //Insert a new usernote
        $db->query_write("
                INSERT INTO " . TABLE_PREFIX . "usernote
                (message, dateline, userid, posterid, title, allowsmilies)
                VALUES ('" . $db->escape_string($usernote_message) . "', " . TIMENOW . ", ".$userinfo['userid'].", " . $vbulletin->userinfo['userid'] . ", '".$db->escape_string($vbphrase['usergroup_changed'])."', 1)
            ");
    }

} 


Also, thanks for the help kh99!

EDIT: I think I narrow it down. It gives me:

Warning: Invalid argument supplied for foreach() in [path]/admincp/user.php(1076) : eval()'d code on line 21

Which I think is this line:

PHP Code:

foreach ($vbulletin->GPC['user']['membergroupids'] AS $newmembergroupid) 


[kh99]

Same problem I suppose. Another thing you can do is to check if it's an array, like:

// Find NEW member group IDs (Added Member Groups)
    $addedmembergroupids = array();
    if (is_array($vbulletin->GPC['user']['membergroupids'])
    {
        foreach ($vbulletin->GPC['user']['membergroupids'] AS $newmembergroupid)
        {
            if (!in_array( $newmembergroupid, explode(',', $userinfo['membergroupids']) ) )
            {
                $addedmembergroupids[] = $newmembergroupid;
            }
        }
    }

But you say it was working in vb3.8 so I'm not sure why this stuff would need to be added now.

[KGodel]

Thanks again kh99. That last array check worked well. Yea, the issues existed after a recent update but no one had posted a fix, so I wasn't sure if it was a vb 3.8.x thing or not. This now works great on vBulletin 4.x. Thanks so much for your help in resolving these issues mate!

[DavidsMods]

Originally Posted by KGodel

Thanks again kh99. That last array check worked well. Yea, the issues existed after a recent update but no one had posted a fix, so I wasn't sure if it was a vb 3.8.x thing or not. This now works great on vBulletin 4.x. Thanks so much for your help in resolving these issues mate!

As a shorthand way of doing this in future, the following is legal:

PHP Code:

foreach ((array)$vbulletin->GPC['user']['membergroupids'] AS $newmembergroupid)