<?php

include('config.php');
include('register.php');

//test to see if username is alphannumberic
$test=$_POST[username];

if(!preg_match('/[^A-Za-z0-9]/ i' , $test)){

        //test for duplicate names
        $query="SELECT * FROM users WHERE username ='$_POST[username]'";
        $result=mysql_query(query);
        $num=mysql_num_rows($result);

        if ($num == 0){

            //insert users into table
            $sql="INSERT INTO users SET username = '$user', password = '$pass'";
            $result=mysql_query($sql);

            //Shows "Thanks for registering" page
            header("Location:thanksreg.html");


            }else{
            header("Location:nameinuse.html");
            }

    }else{
    header("Location:invalidname.html");
    }



?>