<?php
           
  $composer = $_REQUEST["composer"];
 
  require_once("../lib/MYDB.php"); 
  $pdo = db_connect(); 
   
  try{
     $pdo->beginTransaction(); 
     $sql = "update chandj.survey set $composer = $composer + 1";
     $stmh = $pdo->prepare($sql); 
     $stmh->execute(); 
     $pdo->commit();
      
     header("location:result.php");
   } catch (PDOException $Exception) {
         $pdo->rollBack();
       print "오류: ".$Exception->getMessage();
     }
 ?>