config.php

<?php
session_start();
//db 연결
$host = "localhost";//db 위치
$dbname = "myweb";//db 이름
$dbuser = "root";// db사용자ID
$dbpass = "";//db 비밀번호
$db = new PDO("mysql:host={$host};dbname={$dbname};charset=utf8",$dbuser,$dbpass);

$login = false;
$loginuser = isset($_SESSION['loginuser']) ? $_SESSION['loginuser'] : "";
$loginid = isset($_SESSION['loginid']) ? $_SESSION['loginid'] : "";
if( $loginuser && $loginid ) $login = true;