Elep

<?php

global $db;
$user_id = $_REQUEST['online_user_id'];
$user_cookie = $_COOKIE["user_cookie"];
$msg_id = '';
$sql = "SELECT * FROM chat_messages WHERE reciever_id = " . $user_id . " OR sender_id = " . $user_id . " and user_cookie= '" . $user_cookie . "'";
$res = $db->query($sql);
while ($rs = $db->fetchByAssoc($res)) {
    $msg_id = $rs['msg_id'];
}
if ($msg_id != '') {
    $sqlCon = "select a.*, b.* from chat_tbl_user a LEFT JOIN chat_conversation b ON (a.id=b.reciever_id or a.id=b.sender_id) where a.id=" . $user_id . " and b.msg_id=" . $msg_id . " order by b.curr_time ASC";
    $resCon = $db->query($sqlCon);
    $count = 1;
    if ($resCon) {
        while ($rs = $db->fetchByAssoc($resCon)) {
            if ($rs['reciever_id'] == $user_id) {
                $username = "SugarIQ";
            } else {
                if ($rs['user_name'] == '') {
                    $username = "Visitor" . $rs['id'];
                } else {
                    $username = $rs['user_name'];
                }
            }
            $time = date("H:i", strtotime($rs['curr_time']));
            $message = $rs['message'];
            echo '<div class="row">
						<div class="col-lg-12">
							<div class="media">
								<div class="media-body">
									<div class="msg-head" style="width:220px;">
										<div style="float:left;">
											<h4  class="media-heading">' . $username . '</h4>
										</div>
										<div style="float:right;">
											<span class="small">' . $time . '</span>
										</div>
										
										<div  style="clear:both" class="clear"></div>
									</div>
									<p>' . $message . '</p>
								</div>
							</div>
						</div>
					</div>
					<hr style="margin:5px 20px;">';
        }
    }
}