README changes and add merchantID in sample request

Author: rkesarwa

README.md

@@ -103,6 +103,15 @@ php samples/Sale.php
 
 The samples will output the response object for each request if successful. Note that the samples contain test data and should not be run in a live environment. 
 
+##Meta Key support
+Meta Key is a key generated by an entity that can be used to authenticate on behalf of other entities provided that the entity which holds key is a parent entity or associated as a partner.
+
+SOAP PHP SDK supports meta key by default. Additional detail regarding cybs.ini changes.
+
+merchantID=\<Refers-to-portfolio-mid> <br>
+transaction_key=\<Soap-password-generated-for-meta-key><br>
+Send merchantID in request for nvl/xml/sales and followOnCapture request.
+
 ## Tests
 
 In order to run tests, you'll need [PHPUnit](https://phpunit.de). You'll also need to use [Composer](https://getcomposer.org/) for autoloading. If you used Composer to install the client, this should already be set up. Otherwise, to use Composer for autoloading only, from the project root run

samples/AuthFollowOnCapture.php

@@ -31,6 +31,7 @@
 $billTo->email = 'null@cybersource.com';
 $billTo->ipAddress = '10.7.111.111';
 $request->billTo = $billTo;
+//$request->merchantID = '<merchantID>';
 
 $card = new stdClass();
 $card->accountNumber = '4111111111111111';
@@ -73,7 +74,7 @@
 $captureRequest->ccCaptureService = $ccCaptureService;
 $captureRequest->item = array($item0, $item1);
 $captureRequest->purchaseTotals = $purchaseTotals;
-
+//$captureRequest->merchantID = '<merchantID>';
 $captureReply = $client->runTransaction($captureRequest);
 
 // This section will show all the reply fields.

samples/AuthFromNameValuePairs.php

@@ -30,6 +30,8 @@
 $request['purchaseTotals_currency'] = 'USD';
 $request['item_0_unitPrice'] = '12.34';
 $request['item_1_unitPrice'] = '56.78';
+//$request['merchantID'] = '<merchantID>';
+
 $reply = $client->runTransaction($request);
 
 // This section will show all the reply fields.

samples/Sale.php

@@ -46,6 +46,7 @@
 $purchaseTotals->currency = 'USD';
 $purchaseTotals->grandTotalAmount = '90.01';
 $request->purchaseTotals = $purchaseTotals;
+//$request->merchantID = '<merchantID>';
 
 $reply = $client->runTransaction($request);
 

samples/xml/auth.xml

@@ -2,6 +2,7 @@
 <requestMessage
 	xmlns="urn:schemas-cybersource-com:transaction-data-_1.109_">                       -->
 	<merchantReferenceCode>your_merchant_reference_code</merchantReferenceCode>
+	<!--<merchantID>cybs_test_new1</merchantID>-->
 	<billTo>
 		<firstName>John</firstName>
 		<lastName>Doe</lastName>