index.html


<button type="button" onclick="sendRegister()">Register</button>

function sendRegister()
{
	var name = document.getElementById("username").value;
	var pw = document.getElementById("password").value;
	request = new XMLHttpRequest();
	request.onreadystatechange = handleResponse;
	request.open("POST","rpc.php",true);
	request.setRequestHeader("Content-type","application/json");
	var data = JSON.stringify({request:"register",username:name,password:pw});
	request.send(data);
}

rpc.php

case "register":
	$username = $request['username'];
	$password = $request['password'];
	$register = new clientDB("connect.ini");
	$response = $register->addNewClient($username,$password);
	if ($response['success']===true)
	{
		$response = "Registration Successful!<p>";
	}
	else
	{
		$response = "Registration Failed:".$response['message']."<p>";
		break;
	}