如何在PHP中使用重定向发布

细节流

描述

magento站点向API发送帖子

API中间件/微服务将订单保存到数据库并重定向到支付网关

支付网关响应重定向到API支付

将回调重定向到magento

magento代码。发送邮件到api

$uri = sprintf('%s/%s', 'http://api.tld', '/request');
$config = array(
    'adapter'   => 'Zend_Http_Client_Adapter_Curl',
    'curloptions' => array(CURLOPT_FOLLOWLOCATION => true),
);
$client = new Zend_Http_Client($uri, $config);
$client->setMethod(Zend_Http_Client::POST);
$client->setRawData(json_encode(['api' => $api, 'pg' => $data]));
$response = $client->request();

编写api中间件代码，并且必须重定向到支付网关

$content = file_get_contents('php://input');
$data = json_decode($content, true);
$pg = $data['payment_gateway'];// require post to payment gateway

$payment = 'http://paymentgateway.tld/purchase';
$client = new Client(['base_uri' => $payment, 'allow_redirects' => true]);
$res = $client->request('POST', null, $pg);

// the problem is not redirect to $payment.
header("Location: $payment");

---

问题是如何在从magento站点发送帖子后重定向到API中间件中的支付网关。这实际上取决于支付网关支付网关是否正常，没有问题。只是无法重定向到页面支付网关。返回空白页