<?php
include "connect.php";
$username = $_GET["username"];

$query = mysql_query("SELECT * FROM login WHERE username='$username'");

if(mysql_num_rows($query) != 0)
{
echo "Username already exists";
}
else
{
$username=mysql_real_escape_string($_GET['username']);
$password=mysql_real_escape_string($_GET['password']);
$encrypted_mypassword=md5($password);

$insert=mysql_query("INSERT INTO login (username,password) VALUES ('$username','$encrypted_mypassword')") or die("Not Connected");
echo "Successfully Registered...";
}
?>