PayPal IPN——访问会话数据有问题吗?

所有。我在PayPal IPN集成方面遇到了一些问题,我似乎无法获得解决会话变量的方法。

基本上,在我的商店模块脚本中,我将客户的详细信息存储在Paypal提供的订单表中。但是,我也希望将事务中订购的产品保存到由订单id链接的单独表中。

但是,脚本的第二部分不起作用,我在会话中循环遍历产品,然后将它们保存到orders_products表中。

没有读取会话数据的原因吗?

shop.php中的代码如下:

if ($paypal->validate_ipn()) {
    $name = $paypal->ipn_data['address_name'];
    $street_1 = $paypal->ipn_data['address_street'];
    $street_2 = "";
    $city = $paypal->ipn_data['address_city'];
    $state = $paypal->ipn_data['address_state'];
    $zip = $paypal->ipn_data['address_zip'];
    $country = $paypal->ipn_data['address_country'];
    $txn_id = $paypal->ipn_data['txn_id'];
    $sql = "INSERT INTO orders (name, street_1, street_2, city, state, zip, country, txn_id)
            VALUES (:name, :street_1, :street_2, :city, :state, :zip, :country, :txn_id)";
    $smt = $this->pdo->prepare($sql);
    $smt->bindParam(':name', $name, PDO::PARAM_STR);
    $smt->bindParam(':street_1', $street_1, PDO::PARAM_STR);
    $smt->bindParam(':street_2', $street_2, PDO::PARAM_STR);
    $smt->bindParam(':city', $city, PDO::PARAM_STR);
    $smt->bindParam(':state', $state, PDO::PARAM_STR);
    $smt->bindParam(':zip', $zip, PDO::PARAM_STR);
    $smt->bindParam(':country', $country, PDO::PARAM_STR);
    $smt->bindParam(':txn_id', $txn_id, PDO::PARAM_INT);
    $smt->execute();
    // save products to orders relationship
    $order_id = $this->pdo->lastInsertId();
    // $cart = $this->session->get('cart');
    $cart = $this->session->get('cart');
    foreach ($cart as $product_id => $item) {
        $quantity = $item['quantity'];
        $sql = "INSERT INTO orders_products (order_id, product_id, quantity) VALUES ('$order_id', '$product_id', '$quantity')";
        $res = $this->pdo->query($sql);
    }
    $this->session->del('cart');
    mail('martin@mcbwebdesign.co.uk', 'IPN result', 'IPN was successful on wrestling-wear.com');
} else {
    mail('martin@mcbwebdesign.co.uk', 'IPN result', 'IPN failed on wrestling-wear.com');
}

我使用PayPal IPN类作为PHP在这里找到: http://www.micahcarrick.com/04-19-2005/php-paypal-ipn-integration-class.html ,但是 validate_ipn() 方法如下:

public function validate_ipn()
{
    $url_parsed = parse_url($this->paypal_url);
    $post_string = '';
    foreach ($_POST as $field => $value) {
        $this->ipn_data[$field] = $value;
        $post_string.= $field.'='.urlencode(stripslashes($value)).'&';
    }
    $post_string.= "cmd=_notify-validate"; // append IPN command
    // open the connection to PayPal
    $fp = fsockopen($url_parsed[host], "80", $err_num, $err_str, 30);
    if (!$fp) {
        // could not open the connection. If logging is on, the error message will be in the log
        $this->last_error = "fsockopen error no. $errnum: $errstr";
        $this->log_ipn_results(false);
        return false;
    } else {
        // post the data back to PayPal
        fputs($fp, "POST $url_parsed[path] HTTP/1.1\r\n");
        fputs($fp, "Host: $url_parsed[host]\r\n");
        fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
        fputs($fp, "Content-length: ".strlen($post_string)."\r\n");
        fputs($fp, "Connection: close\r\n\r\n");
        fputs($fp, $post_string . "\r\n\r\n");
        // loop through the response from the server and append to variable
        while (!feof($fp)) {
            $this->ipn_response.= fgets($fp, 1024);
        }
        fclose($fp); // close connection
    }
    if (eregi("VERIFIED", $this->ipn_response)) {
        // valid IPN transaction
        $this->log_ipn_results(true);
        return true;
    } else {
        // invalid IPN transaction; check the log for details
        $this->last_error = 'IPN Validation Failed.';
        $this->log_ipn_results(false);
        return false;
    }
}