<?php 
$row = j(get("row"));
$id = null;
if(isset($row['id'])) $id = $row['id'];

$query = db("r_f_i_s")
    ->where("discipline", $row['discipline'])
    ->where("id","!=", $id)
    ->where("rfi_no", $row['rfi_no'])
    ->orderBy("id", "DESC")->count(); 

if($query>0) {
    echo 0;
} else {
    echo 1;
}

?>