This Script ist for Offline Conversion Tracking in Google Anylytics. Contact: http://mizine.de

atrack.php

<?php

/** 
  This Script ist for Offline Conversion Tracking in Google Anylytics
  Author: Viktor Dite
  Contact: http://mizine.de
  Version: v0.2
 **/

$uaid = 'UA-XXXXXXX-X'; // Your Analytics UAID

$amount = $_GET['amount']; // Conversion Value
$uid = $_GET['uid']; // Unique Transaction ID (i.e. Invoice Nr.)
$lstnm = $_GET['LocalStoreName']; // Which Store did the Conversion (Name)
$tcc = $_GET['tcc']; // Coupon Code

//PHP triggered Conversion in Google Analytics
$conversion = exec_url('https://www.google-analytics.com/collect?v=1&t=transaction&tid='.$uaid.'&cid='.gen_uuid().'&ti='.$uid.'&ta=LocalStore&tr='.$amount.'&tcc='.$tcc.'&cu=EUR&dh=mizine.de');

//PHP triggered Event in Google Analytics
$event = exec_url('https://www.google-analytics.com/collect?v=1&t=event&tid='.$uaid.'&cid='.gen_uuid().'&ti='.$uid.'&ec=LocalConversion&ea=Purchase&el='.$lstnm.'&ev='.$amount);



function exec_url($url){
  $curl = curl_init();
  curl_setopt_array($curl, array(
      CURLOPT_RETURNTRANSFER => 1,
      CURLOPT_URL => $url,
      CURLOPT_USERAGENT => 'MiZineTracker/1.0 (http://mizine.de/)',
      CURLOPT_HTTPHEADER => array('Content-type: application/x-www-form-urlencoded'),
      CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
      ));
  $resp = curl_exec($curl);
  curl_close($curl);
  return $resp;
}

// Generates a UUID. A UUID is required for the measurement protocol.
// http://php.net/manual/de/function.uniqid.php#94959
function gen_uuid() {
  return sprintf( '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
  // 32 bits for "time_low"
  mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ),
  // 16 bits for "time_mid"
  mt_rand( 0, 0xffff ),
  // 16 bits for "time_hi_and_version",
  // four most significant bits holds version number 4
  mt_rand( 0, 0x0fff ) | 0x4000,
  // 16 bits, 8 bits for "clk_seq_hi_res",
  // 8 bits for "clk_seq_low",
  // two most significant bits holds zero and one for variant DCE1.1
  mt_rand( 0, 0x3fff ) | 0x8000,
  // 48 bits for "node"
  mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
  );
}

?>

Using it:

http://your-domain/atrack.php?LocalStoreName=MyStoreInNY&uid=346542&amount=2500

v.0.2
Added tcc Parameter for Tracking Coupon Codes from i.e. Google Adwords

http://your-domain/atrack.php?LocalStoreName=MyStoreInNY&uid=346542&amount=2500&tcc=SUMMER2017