[svn r13784] Minor - avoid notice

main/chat/chat_whoisonline.php

@@ -55,10 +55,10 @@ $isMaster=$is_courseAdmin?true:false;
 $pictureURL=api_get_path(WEB_CODE_PATH).'upload/users/';
 
 if(!isset($_SESSION['id_session'])){
-	$query="SELECT t1.user_id,username,firstname,lastname,picture_uri,t3.status FROM $tbl_user t1,$tbl_chat_connected t2,$tbl_course_user t3 WHERE t1.user_id=t2.user_id AND t3.user_id=t2.user_id AND t3.course_code = '".$_course[sysCode]."' AND t2.last_connection>'".date('Y-m-d H:i:s',time()-60*5)."' ORDER BY username";
+	$query="SELECT t1.user_id,username,firstname,lastname,picture_uri,t3.status FROM $tbl_user t1,$tbl_chat_connected t2,$tbl_course_user t3 WHERE t1.user_id=t2.user_id AND t3.user_id=t2.user_id AND t3.course_code = '".$_course['sysCode']."' AND t2.last_connection>'".date('Y-m-d H:i:s',time()-60*5)."' ORDER BY username";
 }
 else{
-	$query="SELECT t1.user_id,username,firstname,lastname,picture_uri FROM $tbl_user t1,$tbl_chat_connected t2,$tbl_session_course_user t3 WHERE t1.user_id=t2.user_id AND t3.id_user=t2.user_id AND t3.course_code = '".$_course[sysCode]."' AND t2.last_connection>'".date('Y-m-d H:i:s',time()-60*5)."' ORDER BY username";
+	$query="SELECT t1.user_id,username,firstname,lastname,picture_uri FROM $tbl_user t1,$tbl_chat_connected t2,$tbl_session_course_user t3 WHERE t1.user_id=t2.user_id AND t3.id_user=t2.user_id AND t3.course_code = '".$_course['sysCode']."' AND t2.last_connection>'".date('Y-m-d H:i:s',time()-60*5)."' ORDER BY username";
 }
 
 $result=api_sql_query($query,__FILE__,__LINE__);