Ошибки для фонового сценария

Question

Моя цель - отладить IPN или любой скрипт, который заканчивается на странице. Обычно ошибки можно легко обрабатывать, но когда они находятся в фоновом режиме, это сложно сделать. Сам скрипт отправляется, когда пользователь платит за paypal. Я не могу отлаживать эту страницу.

Как вы регистрируете ошибку на странице после ее запуска, когда вы покидаете свой сайт в качестве примера этой PayPal. Что я трейд до сих пор ..

Я добавил

ini_set('log_errors', true); ini_set('error_log', dirname(__FILE__).'/ipn_errors.log');

с файлом под названием ipn_errors.log в той же папке, что и страница я пытаюсь отлаживать.

<?php 
// Check to see there are posted variables coming into the script 
if ($_SERVER['REQUEST_METHOD'] != "POST") die ("No Post Variables"); 
// Initialize the $req variable and add CMD key value pair 
$req = 'cmd=_notify-validate'; 
// Read the post from PayPal 
foreach ($_POST as $key => $value) { 
    $value = urlencode(stripslashes($value)); 
    $req .= "&$key=$value"; 
} 
// Now Post all of that back to PayPal's server using curl, and validate everything with PayPal 
// We will use CURL instead of PHP for this for a more universally operable script (fsockopen has issues on some environments) 
//$url = "https://www.sandbox.paypal.com/cgi-bin/webscr"; 
$url = "https://www.paypal.com/cgi-bin/webscr"; 
$curl_result=$curl_err=''; 
$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL,$url); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); 
curl_setopt($ch, CURLOPT_POST, 1); 
curl_setopt($ch, CURLOPT_POSTFIELDS, $req); 
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded", "Content-Length: " . strlen($req))); 
curl_setopt($ch, CURLOPT_HEADER , 0); 
curl_setopt($ch, CURLOPT_VERBOSE, 1); 
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); 
curl_setopt($ch, CURLOPT_TIMEOUT, 30); 
$curl_result = @curl_exec($ch); 
$curl_err = curl_error($ch); 
curl_close($ch); 

$req = str_replace("&", "\n", $req); // Make it a nice list in case we want to email it to ourselves for reporting 

// Check that the result verifies 
if (strpos($curl_result, "VERIFIED") !== false) { 
    $req .= "\n\nPaypal Verified OK"; 
} else { 
    $req .= "\n\nData NOT verified from Paypal!"; 
    mail("chris@test.com", "IPN interaction not verified", "$req", "From: chris@test.com"); 
    exit(); 
} 

/* CHECK THESE 4 THINGS BEFORE PROCESSING THE TRANSACTION, HANDLE THEM AS YOU WISH 
1. Make sure that business email returned is your business email 
2. Make sure that the transaction’s payment status is “completed” 
3. Make sure there are no duplicate txn_id 
4. Make sure the payment amount matches what you charge for items. (Defeat Price-Jacking) */ 

// Check Number 1 ------------------------------------------------------------------------------------------------------------ 
$receiver_email = $_POST['receiver_email']; 
if ($receiver_email != "chris@test.com") { 
    $message = "Investigate why and how receiver email is wrong. Email = " . $_POST['receiver_email'] . "\n\n\n$req"; 
    mail("chris@test.com", "Receiver Email is incorrect", $message, "From: chris@test.com"); 
    exit(); // exit script 
} 
// Check number 2 ------------------------------------------------------------------------------------------------------------ 
if ($_POST['payment_status'] != "Completed") { 
    // Handle how you think you should if a payment is not complete yet, a few scenarios can cause a transaction to be incomplete 
} 
// Connect to database ------------------------------------------------------------------------------------------------------ 
require_once 'db_conx.php'; 
// Check number 3 ------------------------------------------------------------------------------------------------------------ 
// 
$this_txn = $_POST['txn_id']; 
$sql = "SELECT id FROM transactions WHERE txn_id='$this_txn' LIMIT 1"; 
$query = mysqli_query($db_conx, $sql); 
$numRows = mysqli_num_rows($query); 
// 
if ($numRows > 0) { 
    $message = "Duplicate transaction ID occured so we killed the IPN script. \n\n\n$req"; 
    mail("chris@test.com", "Duplicate txn_id in the IPN system", $message, "From: chris@test.com"); 
    exit(); // exit script 
} 
// Check number 4 ------------------------------------------------------------------------------------------------------------ 
$product_id_string = $_POST['custom']; 
$product_id_string = rtrim($product_id_string, ","); // remove last comma 
// Explode the string, make it an array, then query all the prices out, add them up, and make sure they match the payment_gross amount 
$id_str_array = explode(",", $product_id_string); // Uses Comma(,) as delimiter(break point) 
$fullAmount = 0; 
foreach ($id_str_array as $key => $value) { 

    $id_quantity_pair = explode("-", $value); // Uses Hyphen(-) as delimiter to separate product ID from its quantity 
    $product_id = $id_quantity_pair[0]; // Get the product ID 
    $product_quantity = $id_quantity_pair[1]; // Get the quantity 
    $sqlCommand = "SELECT price FROM products WHERE id='$product_id' LIMIT 1"; 
    $query = mysqli_query($db_conx, $sqlCommand); 
    while($row = mysqli_fetch_array($query)){ 
     $product_price = $row["price"]; 
    } 
    $product_price = $product_price * $product_quantity; 
    $fullAmount = $fullAmount + $product_price; 
} 
$fullAmount = number_format($fullAmount, 2); 
$grossAmount = $_POST['mc_gross']; 
if ($fullAmount != $grossAmount) { 
     $message = "Possible Price Jack: " . $_POST['payment_gross'] . " != $fullAmount \n\n\n$req"; 
     mail("chris@test.com", "Price Jack or Bad Programming", $message, "From: chris@test.com"); 
     exit(); // exit script 
} 

// 
// 



// END ALL SECURITY CHECKS NOW IN THE DATABASE IT GOES ------------------------------------ 
//////////////////////////////////////////////////// 
// Homework - Examples of assigning local variables from the POST variables 
$txn_id = $_POST['txn_id']; 
$payer_email = $_POST['payer_email']; 
$custom = $_POST['custom']; 
$first_name = $_POST['first_name']; 
$last_name = $_POST['last_name']; 
$payment_date = $_POST['payment_date']; 
$mc_gross = $_POST['mc_gross']; 
$payment_currency = $_POST['payment_currency']; 
$txn_id = $_POST['txn_id']; 
$receiver_email = $_POST['receiver_email']; 
$payment_type = $_POST['payment_type']; 
$payment_status = $_POST['payment_status']; 
$txn_type = $_POST['txn_type']; 
$payer_status = $_POST['payer_status']; 
$address_street = $_POST['address_street']; 
$address_city = $_POST['address_city']; 
$address_state = $_POST['address_state']; 
$address_zip = $_POST['address_zip']; 
$address_country = $_POST['address_country']; 
$address_status = $_POST['address_status']; 
$notify_version = $_POST['notify_version']; 
$verify_sign = $_POST['verify_sign']; 
$payer_id = $_POST['payer_id']; 
$mc_currency = $_POST['mc_currency']; 
$mc_fee = $_POST['mc_fee']; 

// 
require_once 'db_conx.php'; 

//$username .= substr($email, 0, strpos($email, '@')); 
$user_name = $_POST['first_name']; 
// Place the transaction into the database 
    $sql = "INSERT INTO transactions (product_id_array, email, first_name, last_name, payment_date, mc_gross, payment_currency, txn_id, receiver_email, payment_type, payment_status, txn_type, payer_status, address_street, address_city, address_state, address_zip, address_country, address_status, notify_version, verify_sign, payer_id, mc_currency, mc_fee, ip, username)  
     VALUES('$custom','$payer_email','$first_name','$last_name','$payment_date','$mc_gross','$payment_currency','$txn_id','$receiver_email','$payment_type','$payment_status','$txn_type','$payer_status','$address_street','$address_city','$address_state','$address_zip','$address_country','$address_status','$notify_version','$verify_sign','$payer_id','$mc_currency','$mc_fee','$ip','$user_name')"; 
$query = mysqli_query($db_conx, $sql);//or die (mysqli_error($myConnection)) add this before ; for error checking 
$to  = $payer_email; 
$subject = '| Login Credentials'; 
$message = ' 

Your officially all ready to go. To login use the information below. 

Your account login information 
------------------------- 
Email: '.$payer_email.' 
Password: '.$password.' 
------------------------- 

You can now login at https://www.test.com/signin.php'; 
$headers = 'From:noreply@test.com' . "\r\n"; 

mail($to, $subject, $message, $headers); 
// Mail yourself the details 
mail("chris@test.com", "NORMAL IPN RESULT YAY MONEY!", $req, "From: chris@test.com"); 

?> 

Answer 1

ПШИ слушатель инициируются произвольной сделкой при условии что неполные, неверные и т.д. в самом IPN слушателя вы можете указать, что должно быть обработаны ли это протоколирование ошибок или даже пересылать сообщение об ошибке на указанный адрес электронной почты. Я применил обработчик ipn для обновления значений базы данных при действительной транзакции