Remove credit card samples (#896)

* removed credit card payment samples
* update docs to reflect sample changes
* update readme to recommend braintree for direct card payments

README.md

@@ -36,6 +36,11 @@ __Welcome to PayPal PHP SDK__. This repository contains PayPal's PHP SDK and sam
    - PHP 5.3 or above
    - [curl](https://secure.php.net/manual/en/book.curl.php), [json](https://secure.php.net/manual/en/book.json.php) & [openssl](https://secure.php.net/manual/en/book.openssl.php) extensions must be enabled
 
+
+## Direct Credit Card Support
+[Braintree Direct](https://www.braintreepayments.com/products/braintree-direct) is PayPal's preferred integration solution for accepting direct credit card payments in your mobile app or website. Braintree, a PayPal service, is the easiest way to accept credit cards, PayPal, and many other payment methods.
+
+
 ## License
 
 Read [License](LICENSE) for more licensing information.

sample/doc/payments/AuthorizationCapture.html

@@ -2,15 +2,12 @@
 <p>This sample code demonstrates how you can capture 
 a previously authorized payment.
 API used: /v1/payments/payment
-<a href="https://developer.paypal.com/webapps/developer/docs/api/#capture-an-authorization">https://developer.paypal.com/webapps/developer/docs/api/#capture-an-authorization</a></p></div></div><div class="code"><div class="wrapper"><span class="hljs-comment">/** <span class="hljs-doctag">@var</span> Authorization $authorization */</span>
-<span class="hljs-variable">$authorization</span> = <span class="hljs-keyword">require</span> <span class="hljs-string">'GetAuthorization.php'</span>;
-<span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Amount</span>;
+<a href="https://developer.paypal.com/webapps/developer/docs/api/#capture-an-authorization">https://developer.paypal.com/webapps/developer/docs/api/#capture-an-authorization</a></p></div></div><div class="code"><div class="wrapper"><span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Amount</span>;
 <span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Authorization</span>;
-<span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Capture</span>;</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="capture-payment">Capture Payment</h3>
+<span class="hljs-keyword">use</span> <span class="hljs-title">PayPal</span>\<span class="hljs-title">Api</span>\<span class="hljs-title">Capture</span>;</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><p>Replace $authorizationId with any static Id you might already have. </p></div></div><div class="code"><div class="wrapper"><span class="hljs-variable">$authorizationId</span> = <span class="hljs-string">"&lt;your authorization id here&gt;"</span>;</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><h3 id="capture-payment">Capture Payment</h3>
 <p>You can capture and process a previously created authorization
 by invoking the $authorization-&gt;capture method
-with a valid ApiContext (See bootstrap.php for more on <code>ApiContext</code>)</p></div></div><div class="code"><div class="wrapper"><span class="hljs-keyword">try</span> {
-    <span class="hljs-variable">$authId</span> = <span class="hljs-variable">$authorization</span>-&gt;getId();
+with a valid ApiContext (See bootstrap.php for more on <code>ApiContext</code>)</p></div></div><div class="code"><div class="wrapper"><span class="hljs-keyword">try</span> {</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><p>Retrieve the authorization</p></div></div><div class="code"><div class="wrapper">    <span class="hljs-variable">$authorization</span> = Authorization::get(<span class="hljs-variable">$authorizationId</span>, <span class="hljs-variable">$apiContext</span>);
 
     <span class="hljs-variable">$amt</span> = <span class="hljs-keyword">new</span> Amount();
     <span class="hljs-variable">$amt</span>-&gt;setCurrency(<span class="hljs-string">"USD"</span>)
@@ -23,4 +20,4 @@
     <span class="hljs-keyword">exit</span>(<span class="hljs-number">1</span>);
 }</div></div></div><div class="segment"><div class="comments "><div class="wrapper"><p>NOTE: PLEASE DO NOT USE RESULTPRINTER CLASS IN YOUR ORIGINAL CODE. FOR SAMPLE ONLY</p></div></div><div class="code"><div class="wrapper"> ResultPrinter::printResult(<span class="hljs-string">"Capture Payment"</span>, <span class="hljs-string">"Authorization"</span>, <span class="hljs-variable">$getCapture</span>-&gt;getId(), <span class="hljs-variable">$capture</span>, <span class="hljs-variable">$getCapture</span>);
 
-<span class="hljs-keyword">return</span> <span class="hljs-variable">$getCapture</span>;</div></div></div></div></body></html>
+<span class="hljs-keyword">return</span> <span class="hljs-variable">$getCapture</span>;</div></div></div></div></body></html>