<?php
mysql_connect("localhost","username","password");
mysql_select_db("users");

function antisql($dirty){ //this is to prevent SQL injection
	if (get_magic_quotes_gpc()) {
		$clean = mysql_real_escape_string(stripslashes($dirty));
	}else{
		$clean = mysql_real_escape_string($dirty);
	}
	return $clean;
}

$username = $_POST['username'];
$username = antisql($username);
$email = $_POST['email'];
$email = antisql($email);
$password1 = "1234567890!@#$%^&*()";
$password = str_shuffle($password1);
$subject = 'Registration at system-failur.net!';
$from = 'admin@system-failur.net';
$message = "Dear" . " " . $username . ",<br> You have successfully registered at system-failur.net<br> Here is your account information:<br>Username:" . " " . $username . "<br>Password:" . " " . $password;

mail($to, $subject, $message, "From: $from"); //send email

mysql_query("INSERT INTO users (username, email, password) VALUES ('$username', '$email', '$password')") or die(mysql_error); //insert the data into database
?>