Hue php script

<?php

// Code copied from http://www.everyhue.com/vanilla/discussion/comment/1052#Comment_1052
$HUE_BRIDGE_ADRESS = 'address';
$HUE_API_KEY = 'key';

$url = ''.$HUE_BRIDGE_ADRESS.'/api/'.$HUE_API_KEY.'/lights';

$bulbs = $_GET["bulb"];
$bulblist = explode(',', $bulbs);

foreach($bulblist as $bulb)
{
$previousState[$bulb] = getState($bulb);

$newState = createData();

$response = sendData($newState, $bulb);
echo $response;
}

if ($blinktime = $_GET["blinktime"]){
sleep($blinktime);
foreach($bulblist as $bulb)
{
print_r($previousState[$bulb]);

$response = sendData($previousState[$bulb], $bulb);
echo $response;
}
}

function getState($bulb){
global $url;
echo(''.$url.'/'.$bulb.'');
$cf = curl_init(''.$url.'/'.$bulb.'');
curl_setopt($cf, CURLOPT_RETURNTRANSFER, true);
curl_setopt($cf, CURLOPT_CUSTOMREQUEST, "GET");
$response = curl_exec($cf);
$lightstate = json_decode($response);
if(!$response) {
return false;
}

return $lightstate->state;
}

function createData(){
if (isset($_GET['hue'])) $arrData['hue'] = (int)$_GET['hue'];
else $arrData['hue'] = 100;

if (isset($_GET['sat'])) $arrData['sat'] = (int)$_GET['sat'];
else $arrData['sat'] = 254;

if (isset($_GET['trans'])) $arrData['transitiontime'] = (int)$_GET['trans'];
else $arrData['transitiontime'] = 10;

if (isset($_GET['bri'])) $arrData['bri'] = (int)$_GET['bri'];
else $arrData['bri'] = 240;

if (isset($_GET['on'])) $arrData['on'] = (bool)$_GET['on'];
else $arrData['on'] = true;

return $arrData;
}

function sendData($data, $bulb){
global $url;
$ch = curl_init(''.$url.'/'.$bulb.'/state');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
$response1 = curl_exec($ch);

if(!$response1) {
return false;
}
return response1;
}
?>