Warning: mysqli_select_db() expects exactly 2 parameters, 1 given in D: on line 9 ?>

ada typo tuh, coba agan koreksi lagi. sekalian rapikan script nya :)

<?php
 $host="localhost";
 $user="root";
 $password="";
$db="demo";  $connect= mysqli_connect($host,$user,$password); mysqli_select_db($connect,$db);