сниппет PaymentSend

<?php
$content = '';
$name = $_SESSION['name'];
$email = $_SESSION['email'];
$phone = $_SESSION['phone'];
$total = $_SESSION['total'] * 100;
if(isset($_GET['payment'])){
  switch($_GET['payment']) {
    case 'cash':
      $content = 'Тут будем печатать чек из переменный статики, сессий и других';
    break;
    case 'online':
      $userName = 'ХХХ';
      $password = 'ХХХ';
      $orderNumber = date('dmY_His');
      $returnUrl = 'http://ХХХ/send/return';
      $failUrl = 'http://ХХХ/send/fail';
      $clientId = str_replace('.','',$_SERVER['REMOTE_ADDR']);
      $curl = curl_init();
      curl_setopt($curl, CURLOPT_URL, 'https://securepayments.sberbank.ru/payment/rest/register.do');
      curl_setopt($curl, CURLOPT_RETURNTRANSFER,true);
      curl_setopt($curl, CURLOPT_POST, true);
      curl_setopt($curl, CURLOPT_POSTFIELDS, 'userName='.$userName.'&password='.$password.'&orderNumber='.$orderNumber.'&amount='.$total.'&currency=643&returnUrl='.$returnUrl.'&failUrl='.$failUrl.'&language=ru&clientId='.$clientId.'');
      $out = curl_exec($curl);
      header('Location: '.json_decode($out, true)['formUrl']);
      curl_close($curl);
    break;
    default:
      $content = 'N/A';
  }
}
echo $content;