Update README

README.md

@@ -46,13 +46,17 @@ How to call the function send SMS using GoSms library
 $mobile = $request->input('mobile_phone');
 $message = $request->input('message');
 $trxid = uniqid();
+$type = 0;
+$debug = false;
 
-$result = GoSms::send($mobile, $message, $trxid);
+$result = GoSms::send($mobile, $message, $trxid, $type, $debug);
 
 return $result; // Boolean
 ...
 ```
 
+If you want to debug the function, set `$debug = true;` then the response of the function will be a string containing the response code and the response message from GoSMSGateway API (sample: "1702 - Invalid Username or Password")
+
 For sample, please check `DevController.php`
 
 ## Contributing

app/Http/Controllers/DevController.php

@@ -16,8 +16,10 @@ public function send_sms(Request $request)
         $mobile = $request->input('mobile_phone');
         $message = $request->input('message');
         $trxid = uniqid();
+		$type = 0;
+		$debug = false;
 
-        $result = GoSms::send($mobile, $message, $trxid);
+		$result = GoSms::send($mobile, $message, $trxid, $type, $debug);
 
         return $result; // Boolean
     }

app/Libraries/GoSms.php

@@ -37,7 +37,7 @@ public static function send($mobile, $message, $trxid, $type = 0, $debug = false
         }
         if (!$username || !$password) {
             if ($debug) {
-                return 'Auth credentials is not set';
+                return '0000 - Auth credentials is not set';
             } else {
                 return false;
             }