>>964
PDOを使ってアクセスしています。コードは、こんな感じです。

/**** DB接続PDO ****/
$dsn = 'mysql:host='. SERV .';dbname='. DBNM ;
try {
    $dbh = new PDO($dsn, USER, PASS) ;
    $dbh->query('SET NAMES utf8') ;
    $dbh->setAttribute(PDO::ATTR_EMULATE_PREPARES, FALSE) ;
    $dbh->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING ) ;
} catch (PDOException $e) {
    die('db error.');
}

$sql = 'SELECT * FROM users WHERE mail=:mail AND pass=:pass AND state=1' ;

$stmt = $dbh->prepare($sql);
$stmt->bindParam(':mail', $mail, PDO::PARAM_STR);
$stmt->bindParam(':pass', $pass, PDO::PARAM_STR);
$stmt->execute();
if ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {         
    $_SESSION['id']  = $row['id'] ;
    $_SESSION['user'] = $row['user'] ;