Fix #20

Author: pulsarf0x

examples/send-sms-campaign.php

@@ -28,6 +28,12 @@
 
 $content = $client->send($request);
 
+if (!array_key_exists('code', $content)) {
+    echo 'Success';
+} else {
+    echo 'Failure.';
+}
+
 // ---------------------------------
 // Result example:
 // ---------------------------------

src/Request/SmsCampaign/SendSmsCampaignRequest.php

@@ -60,6 +60,7 @@ public function getQueryArray(): array
                 'send_at' => $this->sendAt,
                 'simulation_mode' => $this->simulationMode
             ],
+            'http_errors' => false
         ];
 
         return $this->filterQueryString($parameters);