debug(true); // Set debug flag $request = $client->getMessageFactory()->createRequest(); $response = $client->getMessageFactory()->createResponse(); $request->setMethod('GET'); $request->setUrl('http://google.com'); $client->send($request, $response); // The PhantomJS executable log. Will contain // any script parse errors, script info and // anything else PhantomJS outputs in debug mode. var_dump($client->getLog());