[Steve123]

I quickly edited the code to make it work with 3.6

if (preg_match('#\[quote=(&quot;|"|\'|)(.*)\\1\](<br>|<br />|\r\n|\n|\r)??(.*)(<br>|<br />|\r\n|\n|\r)??\[/quote\]#esiU',$post['message'])) 
{

    preg_match_all('#\[quote=(&quot;|"|\'|)(.*)\\1\]#esiU',$post['message'],$quotematch);

 
    $quotecount = count($quotematch[0]);
    $tempcount = 0;
    $quotearray = '';

        while ($tempcount < $quotecount) 
        {
        $xquotematch = strtolower($quotematch[0][$tempcount]);
        $xquotematch = str_replace('[quote=','',"$xquotematch");
        $xquotematch = ereg_replace(';.*]$','',"$xquotematch");
        $quoteduserid = $vbulletin->db->query_first("SELECT userid FROM ".TABLE_PREFIX."user WHERE username = '".addslashes(htmlspecialchars_uni($xquotematch))."'");

            if (!strstr("$quotearray","x".$quoteduserid['userid']."")) 
            {
                if ($quoteduserid['userid'] > 0) 
                {
                    $vbulletin->db->query_write("INSERT INTO ".TABLE_PREFIX."quotedatanew (quoted,quoter,postid,dateline) VALUES ('".$quoteduserid['userid']."','".$vbulletin->userinfo['userid']."','".$post['postid']."','".time()."')");
                    $quotearray = "".$quotearray.""."x".$quoteduserid['userid']."";
                }
            }
                $tempcount++;
        }

}

I also disallowed [ ] ; in usernames..

If your using the prevent doublepost hack, then delete the who quoted me code and replace the preventdoublepost hack with the following..

In plugin Main Doublepost Prevent Engine

$oldmessage = $post['message'];


// ########### Xenon's prevent doublepost modification #########

$vbulletin->GPC['xen_isdoublepost'] = false;

// parse custom conditions
$custcond = true;
if (trim($vbulletin->options['xen_dp_custcond']) != '')
{
	eval('$custcond = ((' . $vbulletin->options['xen_dp_custcond'] . ') ? true : false);');
}


// at first check if there is at least the possibility to be a doublepost
if ($custcond AND $type != 'thread'
	AND post.dateline > " . (TIMENOW - $vbulletin->options['xen_dp_timespan'] * 60) . "
	AND $dp_threadinfo['lastposter'] == $vbulletin->userinfo['username']
	AND $dataman->fetch_field('attach') == 0)
{
	// we are here, so we may have a doublepost -> do more exact checkings
	$doublepost = $vbulletin->db->query_first("
		SELECT post.*
		FROM " . TABLE_PREFIX . "post AS post
		LEFT JOIN " . TABLE_PREFIX . "deletionlog AS deletionlog ON(deletionlog.primaryid = post.postid AND type = 'post')
		WHERE threadid = $threadinfo[threadid]
			AND post.dateline > " . (TIMENOW - $vbulletin->options['xen_dp_timespan'] * 60) . "
			AND visible = 1 AND deletionlog.primaryid IS NULL
			AND postid <> $post[postid]
		ORDER BY dateline DESC
		LIMIT 1
	");

	if ($doublepost['userid'] == $vbulletin->userinfo['userid'] AND $doublepost['attach'] == 0)
	{
		// we truely have a doublepost, now check if the merged post still fits the rules!
		$dpdataman =& datamanager_init('Post', $vbulletin, ERRTYPE_ARRAY, 'threadpost');
		$dpdataman->set_existing($doublepost);
		$doublepost['message'] = $doublepost['pagetext'] . "\n" . $vbulletin->options['xen_dp_spacer'] . "\n" . $post['message'];

		// set info
		$dpdataman->set_info('preview', $post['preview']);
		$dpdataman->set_info('parseurl', $post['parseurl']);
		$dpdataman->set_info('posthash', $post['posthash']);
		$dpdataman->set_info('forum', $foruminfo);
		$dpdataman->set_info('thread', $dp_threadinfo);

		// set options
		$dpdataman->setr('showsignature', $post['signature']);
		$dpdataman->setr('allowsmilie', $post['enablesmilies']);

		// set data
		$dpdataman->setr('pagetext', $doublepost['message']);
		$dpdataman->setr('iconid', $post['iconid']);

		$dpdataman->pre_save();
		if (!$dpdataman->errors)
		{
			// merged post is ok, so actually do the merging by editing old post
			$vbulletin->GPC['xen_isdoublepost'] = true;

			if ($vbulletin->options['xen_dp_bumpthread'])
			{
				// bump thread, so change the post's dateline
				$doublepost['dateline'] = TIMENOW;
				$dpdataman->setr('dateline', $doublepost['dateline']);
			}
			$dpdataman->save();

			// as we have edited an old post, we can now delete the new created post
			$postman =& datamanager_init('Post', $vbulletin, ERRTYPE_SILENT, 'threadpost');
			$postman->set_existing($post);
			$postman->delete($foruminfo['countposts'], $threadinfo['threadid'], $removaltype = true, array('userid' => $vbulletin->userinfo['userid'], 'username' => $vbulletin->userinfo['username'], 'reason' => $vbulletin->options['xen_dp_editedby'], 'keepattachments' => false), false);
			unset($postman);

			$doublepost['oldmessage'] = $post['message'];
			$post = $doublepost;
			$id = $post['postid'];

			//now add edited by message
			if ($vbulletin->options['xen_dp_editedby'] != '')
			{
				$vbulletin->db->query_write("
					REPLACE INTO " . TABLE_PREFIX . "editlog (postid, userid, username, dateline, reason)
					VALUES ($post[postid], " . $vbulletin->userinfo['userid'] . ", '" . addslashes($vbulletin->userinfo['username']) . "', " . TIMENOW . ", '" . addslashes($vbulletin->options['xen_dp_editedby']) . "')
				");
			}

			// last step update counters
			build_thread_counters($post['threadid']);
			build_forum_counters($foruminfo['forumid']);
		}
	}
}

if (preg_match('#\[quote=(&quot;|"|\'|)(.*)\\1\](<br>|<br />|\r\n|\n|\r)??(.*)(<br>|<br />|\r\n|\n|\r)??\[/quote\]#esiU',$oldmessage)) 
{

    preg_match_all('#\[quote=(&quot;|"|\'|)(.*)\\1\]#esiU',$oldmessage,$quotematch);

 
    $quotecount = count($quotematch[0]);
    $tempcount = 0;
    $quotearray = '';

        while ($tempcount < $quotecount) 
        {
        $xquotematch = strtolower($quotematch[0][$tempcount]);
        $xquotematch = str_replace('[quote=','',"$xquotematch");
        $xquotematch = ereg_replace(';.*]$','',"$xquotematch");
        $quoteduserid = $vbulletin->db->query_first("SELECT userid FROM ".TABLE_PREFIX."user WHERE username = '".addslashes(htmlspecialchars_uni($xquotematch))."'");

            if (!strstr("$quotearray","x".$quoteduserid['userid']."")) 
            {
                if ($quoteduserid['userid'] > 0) 
                {
                    $vbulletin->db->query_write("INSERT INTO ".TABLE_PREFIX."quotedatanew (quoted,quoter,postid,dateline) VALUES ('".$quoteduserid['userid']."','".$vbulletin->userinfo['userid']."','".$post['postid']."','".time()."')");
                    $quotearray = "".$quotearray.""."x".$quoteduserid['userid']."";
                }
            }
                $tempcount++;
        }

}

It seems to work for me..

the whoquotedme.php needs to be rewritten and i gota add support so it dosen't display quotes from private forums..

I will do this when i get the time..