maths in php

[crazybrumi]

$addplus = mysql_fetch_array(mysql_query("SELECT rate,total FROM gallery_files WHERE id='".$id."'"));

    $addplus = $rate + $addplus[0];
    $total = $addplus[1] + 10;
    $res = mysql_query("UPDATE gallery_files SET rate= '".$addplus."', total = '".$total."' WHERE id='".$id."'");
    if($res){
    $main.="<p align=\"center\">";
    $main.="<img src=\"../phpThumb/phpThumb.php?src=../images/ok.gif\" alt=\"O\"/>You Have Rated This Picture Successfully<br/>";
    mysql_query("INSERT INTO rated SET id='".$id."', bywho='".getuid_sid($sid)."', value='".$rate."'"); 
    } 

this dosnt want to add the 10 ontop of the saved scored in total. so every time some gets rated they get rated outa 10 so if 2 people rated them it would be rate/ out of 20 but the 20 wont updated to 30 when he next reate is done if u nw what i mean. :0 cheers folks.

[Anshul]

rate and total field are they int ?

second you can do this by
in single line query

$update = mysql_query("UPDATE `gallery_files` SET `rate` = `rate` + $rate ,`total` = `total` + 10  WHERE `id` = '" . $logged['id'] . "';");