Multiple post xml data in guzzle and multiple async request - php

Question

How can I create an asynchronous request to multiple URI with different post data for each?
I am able to get the data for each of the URI, but I want to make it asynchronous.
Also, how do I timeout if the request takes too long?
My code:
//url
$ur1 = 'www.exaample1.com';
$ur2 = 'www.Test.com';
//xml
$ur1_xml = ''; // xml code
$ur2_xml = ''; // xml code
//headers
$ur1_header = array("POST HTTP/1.1",
"Content-type: application/xml; charset=\"utf-8\"",
"Content-length: " . strlen($ur1_xml));
$ur2_header = array("POST HTTP/1.1",
"Content-type: application/xml; charset=\"utf-8\"",
"Content-length: " . strlen($ur2_xml));
$client = new Client();
// make request
$request = new Request('POST', $ur1_url, $ur1_headers,$ur1_xml);
$promise = $client->sendAsync($request)->then(function ($response) {
echo '<pre>';
print_r(simplexml_load_string($response->getBody()));
echo '</pre>';
});
die();

Answer 1

For application/x-www-form-urlencoded send Async requests you can get benefit from Guzzle promises. Headers and POST fields should go into an array as documents state.
use GuzzleHttp\Client;
use GuzzleHttp\Promise;
.
.
.
$client = new Client();
$promises = [
$client->postAsync($url1, ['headers' => $headers1, 'form_params' => $postData1]),
$client->postAsync($url2, ['headers' => $headers2, 'form_params' => $postData2]),
$client->postAsync($url3, ['headers' => $headers3, 'form_params' => $postData3])
];
$results = Promise\unwrap($promises);
$results = Promise\settle($promises)->wait();
// response headers of first request
print_r($results[0]['value']->getHeaders());
// retrieved contents of second request
echo $results[1]['value']->getBody()->getContents();