The goods do not come to the post office after payment?

Question

PHP

I connected the store to anypay, the payment goes through, but the goods don’t come to the buyer’s mail, only a receipt for payment from the payment system and that’s it ... I did it according to the documentation, I don’t understand where I messed up .. before that there was another payment, but the documentation is almost identical, everything norms worked.

here is the documentation itself: https://anypay.io/doc#signature_form

Here is the code for the purchase process

<?php
session_start();
if(!isset($_SESSION['redirect_link'])){
  header("location: ../index.php");
}
if(isset($_GET['email']) and isset($_GET['product'])){
  $email = $_GET['email'];
  $product = $_GET['product'];
  if($product == 1){
    $amount = 5;
  }
  else if($product == 2){
    $amount = 50;
  }
  else if($product == 3){
    $amount = 99;
  }
  else if($product == 4){
    $amount = 320;
  }
  else if($product == 5){
    $amount = 230;
  }
  else if($product == 6){
    $amount = 300;	
  }
  else if($product == 7){
    $amount = 99;	
  }
  $errors = array(
    'error' => False,
    'message' => ''
  );
  if($product != 1 && $product != 2 && $product != 3 && $product != 4 && $product != 5 && $product != 6 && $product != 7){
    header("location: ../index.php");
  }
  if(strlen($email) == 0){
    if($errors['error'] == False){
      $errors['error'] = True;
      $errors['message'] = 'Пожалуйста заполните поле вашего e-mail адреса';
    }
  }
  if(!preg_match('/^[a-zA-Z0-9]{1}[a-zA-Z0-9_.-]{3,}\@[a-zA-Z]+\.[a-z]{2,}$/', $email)){
    if($errors['error'] == False){
      $errors['error'] = True;
      $errors['message'] = 'Не валидный e-mail адрес';
    }
  }
  if(strlen($email) > 56){
    if($errors['error'] == False){
      $errors['error'] = True;
      $errors['message'] = 'e-mail адрес очень длинный';
    }
  }
  if($errors['error'] == False){
    $shop_id = 'ид магазина';
        $secret_key = 'секретный ключ';
        $amount = $amount;
        $pay_id = time();
        $currency = 'RUB';
           
        $sign = md5($currency.':'.$amount.':'.$secret_key.':'.$shop_id.':'.$pay_id);  //Генерация ключа
        header("location: https://anypay.io/merchant?merchant_id=".$shop_id."&amount=".$amount."&pay_id=".$pay_id."&currency=".'RUB'."&sign=".$sign."&email=".$email."");
  }
  else{
    $_SESSION['error'] = $errors['message'];
    header("location: ".$_SESSION['redirect_link']."");
  }
}
else{
  header("location: ".$_SESSION['redirect_link']."");
}
?>

Here is the payment verification code

<?php
include "includes/db.php";
include "includes/querys.php";
include "includes/setmailer.php";
$shop_id = 'ид магазина';
$secret_key = 'секретный ключ';
$ordered_email = $_REQUEST['custom_field'];
if($_REQUEST['amount'] == 5){
  $product = 1;
  $product_text = '1 продукт';
}
else if($_REQUEST['amount'] == 50){
  $product = 2;
  $product_text = '2 продукт';
}
else if($_REQUEST['amount'] == 99){
  $product = 3;
  $product_text = '3 продукт';
}
else if($_REQUEST['amount'] == 320){
  $product = 4;
  $product_text = '4 продукт';
}
else if($_REQUEST['amount'] == 230){
  $product = 5;
  $product_text = '5 продукт';
}
else if($_REQUEST['amount'] == 300){
  $product = 6;
  $product_text = '6 продукт';
}
else if($_REQUEST['amount'] == 99){
  $product = 7;
  $product_text = '7 продукт';
}

$signature = md5($shop_id.':'.$_REQUEST['amount'].':'.$_REQUEST['pay_id'].':'.$secret_key);

if ($signature != $_REQUEST['sign']) {
    die('bad sign!');
}

die('OK'); 
$request->setdb($conn,'products','game_type',$product,'used',0,1);
$key = $request->select();
if($key->num_rows > 0){
  $key_row = $key->fetch_array();
  $key_product = $key_row['key_product'];
  $emailed->set($ordered_email, 'Спасибо за покупку,ваш ключ ждёт вас!','Поздравляем: '.$product_text.', ваш - ключ: '.$key_product.'');
  $emailed->send();
  $request->setdb($conn,'products','used',1,'id',$key_row['id']);
  $request->update();
  $request->setdb($conn,'products','ordered_email',$ordered_email,'id',$key_row['id']);
  $request->update();
}
?>

Answer 1

Include in a separate php file the include module "includes/setmailer.php";
and try sending something to yourself, separate from the payment business logic.
PS: You may have to fix the config of this module in terms of the smtp protocol.
PPS: The hosting from which you send the letter may have features with the work of smtp - check it out.

Answer 2

It's night and I'm inattentive, or do you finish the script before the database is written and everything else?