PHP GuzzleHttp. How to make a post request with params?

Question

How to make a post request with GuzzleHttp( version 5.0 ).

I am trying to do the following:

$client = new \\GuzzleHttp\\Client();
$client->post(
    \         


        

Answer 1

$client = new \GuzzleHttp\Client();
$request = $client->post('http://demo.website.com/api', [
    'body' => json_encode($dataArray)
]);
$response = $request->getBody();

Add

openssl.cafile in php.ini file