PHP Insert ke 2 database

/** untuk kasusnya, pada sampel ini dibutuhkan 4 file **/

// file koneksi1.php
<?php
$c = mysql_connect("localhost","root","") or die("Tidak bisa konek ke mysql");
$o = mysql_select_db("mydb1",$c) or die("Tidak bisa membuka database 1");
?>

// file koneksi2.php
<?php
$c = mysql_connect("localhost","root","") or die("Tidak bisa konek ke mysql");
$o = mysql_select_db("mydb2",$c) or die("Tidak bisa membuka database 2");
?>

// file input.html
<!DOCTYPE html>
<head>
<title>Register</title>
</head>
<body>
<h1>Form Registrasi</h1>
<form action="register.php" method="post">
Nama: <input type="text" name="nama" size="30" placeholder="Nama Lengkap" /><br />
Gender: <label><input type="radio" name="gender" value="L" /> Pria</label> <label><input type="radio" name="gender" value="P" /> Wanita</label><br />
Tgl Lahir: <input type="text" name="tgl_lahir" size="20" placeholder="dd/mm/yyyy" /><br />
Kota: <input type="text" name="kota" size="30" placeholder="Kota" /><br />
Username: <input type="text" name="username" size="30" placeholder="username" /><br />
Password: <input type="password" name="password" size="30" placeholder="Password" /><br />
Email: <input type="text" name="email" size="30" placeholder="[email protected]" /><br />
Website/Blog: <input type="text" name="url" size="30" placeholder="http://" /> *optional<br />
<input type="submit" name="simpan" value=" REGISTER " />
</form>


// file register.php
<?php
include "koneksi1.php";
if(isset($_POST['simpan'])){
$nama = mysql_real_escape_string($_POST['nama']);
$gender= $_POST['gender'];
$tgl_lahir= preg_replace("/(\d{2})\/(\d{2})\/(\d{4})/","$3-$2-$1",$_POST['tgl_lahir']);
$kota = mysql_real_escape_string($_POST['kota']);
$username= mysql_real_escape_string($_POST['username']);
$password= md5($_POST['password']);
$email= mysql_real_escape_string($_POST['email']);
$url= mysql_real_escape_string($_POST['url']);

if($nama && $gender && $tgl_lahir && $kota && $username && $password && $email){
$simpan = mysql_query("INSERT into tblLogin(username,password,email,nama) VALUES('$username','$password','$email','$nama')");
if($simpan){
include "koneksi2.php";
$simpan2 = mysql_query("INSERT into tblUser(username,nama,email,kota,url) VALUES('$username','$nama','$email','$kota','$url')");
if($simpan2) echo "Registrasi berhasil...";
}
}else{
echo "<p class=\"warning\">Maaf... harap isi form secara lengkap!!</p>";
}
}
?>