Populate PDF Receipt from PHP

populate_receipt.php

<?php

//$user = User information from app
//$account = Account information from app
//$payment = Payment information from app

$customerInfo = array(
  'CustomerName' => $user->first_name.' '.$user->last_name,
  'Email' => $user->email,
  'Company' => $account->company,
  'State' => $account->state,
  'Address' => $account->street_address.', '.$account->city.', '.$account->state.' '.$account->zip,
  'Description' => 'Subscription Renewal',
  'Amount' => $payment->amount,
  'OrderNum' => $payment->id
);

$mergeUrl = 'https://www.webmerge.me/merge/12345/abcdef';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $mergeUrl);

curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($customerInfo));

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
	'Content-Type: application/json'
));

$res = curl_exec($ch);
$response = json_decode($res, true);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
		
curl_close($ch);

if($status == 201){
	//success
}else{
	die('Error: '.$response['error']);
}

?>