MyBB Community Forums

Can anybody help me I have this plugin and I am trying to make it so that.

Show error when no tags are entered.
Show error is the tag is less than 3 characters long.

Spend time but can't figure how to.

function systemtags_insert_tags_thread(&$thread)
{
	global $mybb, $db;
	if($mybb->input['tags'])
	{
		$stags = strip_tags($mybb->input['tags']);
		$tagsht = htmlspecialchars_uni($stags);
		$searchcodes = explode(",", $mybb->input['systemtag_disablecodes']);
		$rtags = str_replace($searchcodes, " ", $tagsht);
		$rtagsp_br = preg_replace("/\r\n|\r/", " ", $rtags);
		$tags = trim($rtagsp_br);
		$explode = explode(",", $tags);
		$array = array();
		foreach($explode as $tag)
		{
			if(strlen($tag) >= 4)
			{	
				$array[] = $tag;
			}
		}
		$insert = implode(", ",$array);
		$insert = $db->escape_string($insert);
		$inserttags = array(
			"tid" => $thread->tid,
			"tags" => $insert
		);	
		$aid = $db->insert_id();
		$db->insert_query("tags", $inserttags);
	}
	else
	{
		$stags = strip_tags($thread->data['subject']);
		$tagsht = htmlspecialchars_uni($stags);
		$codes = $mybb->settings['systemtag_disablecodes'];
		$searchcodes = explode(" ",$codes);
		$rtags = str_replace($searchcodes, " ", $tagsht);
		$rtagsp_br = preg_replace("/\r\n|\r/", " ", $rtags);
		$tags = trim($rtagsp_br);
		$explode = explode(" ", $tags);
		$tags = array();
		$countags = 0;
		foreach($explode as $strlen)
		{
			if(strlen($strlen) >= 4)
			{
				$tags[] = $strlen;
				++$countags;
			}
		}
		if($countags < 5)
		{
			$ptags = strip_tags($thread->data['message']);
			$tagshtp = htmlspecialchars_uni($ptags);
			$codes = $mybb->settings['systemtag_disablecodes'];
			$searchcodes = explode(" ",$codes);
			$rtagsp = str_replace($searchcodes, " ", $tagshtp);
			$rtagsp_br = preg_replace("/\r\n|\r/", " ", $rtagsp);
			$tagsmesaage = trim($rtagsp_br);
			$explodemessage = explode(" ", $tagsmesaage);
			$tagspost = array();
			$countagspost = 0;
			foreach($explodemessage as $strlenpost)
			{
				if(strlen($strlenpost) >= 5)
				{
					$tagspost[] = $strlenpost;
					++$countagspost;
				}
			}
			$newcount = 6 - $countags;
			$newcount = intval($newcount);
			if($newcount > $countagspost)
			{
				return false;
			}
			$randomarr = array_rand($tagspost, $newcount);
			$countfor = $newcount - 1;
			$newtags = array();
			for ($i = 0; ; $i++) 
			{
				if ($i > $countfor) 
				{
					break;
				}
				$newtags[] = $tagspost[$randomarr[$i]];
			}
		}
		$newarrays = array_merge($tags,$newtags);
		$implod = implode(", ",$newarrays);
		$insert = $db->escape_string($implod);
		$inserttags = array(
			"tid" => $thread->tid,
			"tags" => $insert
		);	
		$aid = $db->insert_id();
		$db->insert_query("tags", $inserttags);
	}
}

function systemtags_validate_tags(&$thread)
{
	global $mybb,$posthandler, $lang;
	$lang->load("tags");
	if($mybb->input['tags'])
	{
		$stags = strip_tags($mybb->input['tags']);
		$tagsht = htmlspecialchars_uni($stags);
		$searchcodes = explode(",", $mybb->settings['systemtag_disablecodes']);
		$rtags = str_replace($searchcodes, " ", $tagsht);
		$tags = trim($rtags);
		$explode = explode(",", $tags);
		$tagnum = 0;
		foreach($explode as $tag)
		{
			if(strlen($tag) >= 4)
			{
				++$tagnum;
			}	
			else
			{
				$posthandler->set_error($lang->tagsfivecaracters);
				return false;
			}
		}
		if($tagnum < 5)
		{
			$posthandler->set_error($lang->menosfivetags);
			return false;
		}
	}
	else
	{
		if($thread->data['subject'] && $thread->data['message'])
		{
			$stags = strip_tags($thread->data['subject']);
			$tagsht = htmlspecialchars_uni($stags);
			$codes = $mybb->settings['systemtag_disablecodes'];
			$searchcodes = explode(" ",$codes);
			$rtags = str_replace($searchcodes, " ", $tagsht);
			$rtagsp_br = preg_replace("/\r\n|\r/", " ", $rtags);
			$tags = trim($rtagsp_br);
			$explode = explode(" ", $tags);
			$tags = array();
			$countags = 0;
			foreach($explode as $strlen)
			{
				if(strlen($strlen) >= 4)
				{
					$tags[] = $strlen;
					++$countags;
				}
			}
			if($countags < 5)
			{
				//count(split("[ ]+", $thread->data['message']))
				$ptags = strip_tags($thread->data['message']);
				$tagshtp = htmlspecialchars_uni($ptags);
				$codes = "{ } [ ] ( ) \" ' < > : ; . , - _ + ! ? = $ % & ¡ ¿ /";
				$searchcodes = explode(" ",$codes);
				$rtagsp = str_replace($searchcodes, " ", $tagshtp);
				$rtagsp_br = preg_replace("/\r\n|\r/", " ", $rtagsp);
				$tagsmesaage = trim($rtagsp_br);
				$explodemessage = explode(" ", $tagsmesaage);
				$tagspost = array();
				$countagspost = 0;
				foreach($explodemessage as $strlenpost)
				{
					if(strlen($strlenpost) >= 5)
					{
						$tagspost[] = $strlenpost;
						++$countagspost;
					}
				}
				$newcount = 6 - $countags;
				$newcount = intval($newcount);
				if($newcount > $countagspost)
				{
					$posthandler->set_error($lang->errortaggenerateone);
					return false;
				}
				$randomarr = array_rand($tagspost, $newcount);
				$countfor = $newcount - 1;
				$newtags = array();
				for ($i = 0; ; $i++) 
				{
					if ($i > $countfor) 
					{
						break;
					}
					$newtags[] = $tagspost[$randomarr[$i]];
				}
				$newarrays = array_merge($tags,$newtags);
				$tagnum = 0;
				foreach($newarrays as $countnewtags)
				{
					++$tagnum;
				}
				if($tagnum < 5)
				{
					$posthandler->set_error($lang->errorgeneratetagtwo);
					return false;
				}
			}
		}
	}
}

http://mods.mybb.com/view/tag-system

$thread->set_error('Wrong!');
return false;

Should suffice.

Thanks buddy very much!