Q:

How to disable a proxy when using the Guzzle HTTP client?

I'm trying to call a web service on a clients server using the Guzzle library - but the server have a proxy so I'm getting a 404 error in my code.
If I ssh into the clients server and try
wget http://www.mywebsite.com/mywebservice

I get an error 
Resolving proxy.theirdomainname.com (proxy.theirdomainname.com)... xx.xx.xx.xx
Connecting to proxy.theirdomainname.com (proxy.theirdomainname.com)|xx.xx.xx.xx|:80...
failed: Connection timed out.

But if I use
wget --no-proxy http://www.mywebsite.com/mywebservice

I get a result
Resolving www.mywebsite.com (www.mywebsite.com)... xx.xx.xx.xx
Connecting to www.mywebsite.com (www.mywebsite.com)|xx.xx.xx.xx|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]

I can see an option to set the proxy in the Guzzle documentation  - http://guzzle.readthedocs.org/en/latest/http-client/client.html#proxy
But how do I disable using a proxy altogether? Or will this be a server setting?
EDIT:
$request = $client->get($this->url(), array('proxy' => ''))
                  ->setHeader('Accept', 'text/xml');

$response = $request->send();
var_dump($response);

Result :
Fatal error: Uncaught exception 'Guzzle\Http\Exception\ClientErrorResponseException'
with message 'Client error response [status code] 404 [reason phrase] Not Found [url] http://mywebsite.com'
in /vendor/guzzle/guzzle/src/Guzzle/Http/Exception/BadResponseException.php:44 
Stack trace: #0 /guzzle/guzzle/src/Guzzle/Http/Message/Request.php(145): Guzzle\Http\Exception\BadResponseException::factory(Object(Guzzle\Http\Message\Request), Object(Guzzle\Http\Message\Response)) 
#1 [internal function]: Guzzle\Http\Message\Request::onRequestError(Object(Guzzle\Common\Event))
#2 /vendor/symfony/event-dispatcher/Symfony/Component/EventDispatcher/EventDispatcher.php(164): call_user_func(Array, Object(Guzzle\Common\Event))
#3 /vendor/symfony/event-dispatcher/Symfony/Component/EventDispatcher/EventDispatcher.php(53): Symfony in /vendor/guzzle/guzzle/src/Guzzle/Http/Exception/BadResponseException.php on line 44

A:

If you are using Guzzlehttp6 : 

if you want to specify a different proxy for a given type of protocol :
 $client->request('GET', 'your_url_here', [
'proxy' => [
'http'  => 'tcp://localhost:8125', // Use this proxy with "http"
'https' => 'tcp://localhost:9124', // Use this proxy with "https",
'no' => ['.mit.edu', 'foo.com']    // Don't use a proxy with these
   ]
]);

If you want to disable proxy for all your queries : 
$client->request('GET','your_url_here',['proxy'=>'']);

Link to the official documentation.

