私の間違いを正してくれる人が必要です ここにエラーがあります
Notice: Undefined index: login in C:\xampp\htdocs\bank\index.php on line 10
Notice: Undefined index: password in C:\xampp\htdocs\bank\index.php on line 10
Notice: A session had already been started - ignoring session_start() in C:\xampp\htdocs\bank\header.php on line 2
$result = mysql_query("SELECT * FROM customers WHERE loginid='$_POST[login]' AND accpassword='$_POST[password]'");
if(mysql_num_rows($result) == 1)