Catch ConnectException from Guzzle - php

Question

I am trying to retrieve the error message that comes with a GuzzleHttp\Exception\ConnectException in Guzzle 6.
I read that in older version this could be achieved with getResponse().
However, the method now returns null by default.
This is my code:
$responses = Pool::batch($client, $requests($this->list), array(
'concurrency' => 15,
));
foreach ($responses as $event) {
$classname = get_class($event);
$raw = print_r($event,1);
if ($classname == "GuzzleHttp\Exception\ConnectException") {
$response = json_encode((string)$event->getResponse());
}
echo $response;
}
$response is empty.
However, $raw contains these lines:
[0] => GuzzleHttp\Exception\ConnectException Object
(
[request:GuzzleHttp\Exception\RequestException:private] => GuzzleHttp\Psr7\Request Object
(
[method:GuzzleHttp\Psr7\Request:private] => GET
....
)
[response:GuzzleHttp\Exception\RequestException:private] =>
[handlerContext:GuzzleHttp\Exception\RequestException:private] => Array
(
[errno] => 6
[error] => Could not resolve host: mydomain.it
[url] => http://mydomain.it/
[content_type] =>
[http_code] => 0
....
How do I retrieve the "Could not resolve host: mydomain.it" message?
All I found was "you need to catch the error". But how when I am using Pool::batch and everything already is in my responses array?

Answer 1

Use $event->getMessage() (Exception Message) instead of $event->getResponse() because there is no connection, so no response