<?php

    $query = "SELECT
    			posts.post_id,
    			posts.post_by,
    			users.user_id,
    			users.user_name,
    			topics.topic_id,
    			topics.topic_cat
    		FROM
    			posts
    		LEFT JOIN
    			users
    		ON
    			posts.post_by = users.user_id
    		LEFT JOIN
    			topics
    		ON
    			posts.post_topic = topics.topic_id
    		WHERE
    		    topic_id = '" . (int)$actual . "'
    		ORDER BY
    			post_id DESC
    		LIMIT
    			1";

    $checkpost = mysql_query($query) OR die(mysql_error());

    if(!$checkpost) {

    echo '<em>' . $lang['no_one'] . '</em>';

    	}else{

    	if(intval(mysql_num_rows($checkpost)) == 0) {

    	echo '<em>' . $lang['no_one'] . '</em>';

    }else{

    while($lastrep = mysql_fetch_assoc($checkpost)) {
        
        $lastpost = '<a href="profile.php?user_id=' . (int)$lastrep['user_id'] . '" class="topics">' . htmlentities($lastrep['user_name'], ENT_QUOTES) . '</a>';
        }
    }
    }

?>