PHP mysql 연동

<?
$dbId = "test";
$dbPassword = "12345";
$dbName = "test";

$conn = mysql_connect('localhost', $dbId, $dbPassword);

if (!$conn) {
die('Could not connect: ' . mysql_error());
}

$selectDB =  mysql_select_db($dbName, $conn);
if(!selectDB) {
echo("데이터베이스 에러");
exit;
}

//mysql_query("set character set euckr");

$query = "SELECT * FROM mem";
$result = mysql_query($query,$conn) or die("잘못된 퀴리문입니다");

while ($row = mysql_fetch_array($result)) {
    $num = $row["num"];
    $id = $row["id"];
    $name = $row["name"];
    $sex = $row["sex"];
    $tel = $row["tel"];
}