Updating samples to use dynamic SDK configuration

sample/bootstrap.php

@@ -1,40 +1,51 @@
 <?php
+
 /*
  * Sample bootstrap file.
  */
 
-// Include the composer autoloader
+// Include the composer autoloader
 if(!file_exists(__DIR__ .'/vendor/autoload.php')) {
 	echo "The 'vendor' folder is missing. You must run 'composer update --no-dev' to resolve application dependencies.\nPlease see the README for more information.\n";
 	exit(1);
 }
+
+
 require __DIR__ . '/vendor/autoload.php';
 require __DIR__ . '/common.php';
-
-define("PP_CONFIG_PATH", __DIR__);
-
 use PayPal\Rest\ApiContext;
 use PayPal\Auth\OAuthTokenCredential;
 
-// ### Api Context
-// Pass in a `PayPal\Rest\ApiContext` object to authenticate 
-// the call. You can also send a unique request id 
-// (that ensures idempotency). The SDK generates
-// a request id if you do not pass one explicitly. 
-$apiContext = new ApiContext(new OAuthTokenCredential(
-		'EBWKjlELKMYqRNQ6sYvFo64FtaRLRR5BdHEESmha49TM',
-		'EO422dn3gQLgDbuwqTjzrFgFtaRLRR5BdHEESmha49TM'));
-
-// Uncomment this step if you want to use per request 
-// dynamic configuration instead of using sdk_config.ini
-/*
-$apiContext->setConfig(array(
-	'mode' => 'sandbox',
-	'http.ConnectionTimeOut' => 30,
-	'log.LogEnabled' => true,
-	'log.FileName' => '../PayPal.log',
-	'log.LogLevel' => 'FINE'
-));
-*/
 
-
+
+// ### Api context
+// Pass in a `PayPal\Rest\ApiContext` object to authenticate 
+// API calls. The clientId and clientSecret for the 
+// OAuthTokenCredential class can be retrieved from 
+// developer.paypal.com
+
+$apiContext = new ApiContext(
+	new OAuthTokenCredential(
+		'EBWKjlELKMYqRNQ6sYvFo64FtaRLRR5BdHEESmha49TM',
+		'EO422dn3gQLgDbuwqTjzrFgFtaRLRR5BdHEESmha49TM'
+	)
+);
+
+
+
+// #### SDK configuration
+// Comment this line out and uncomment the PP_CONFIG_PATH
+// 'define' if you want to use a static file based configuration
+
+$apiContext->setConfig(
+	array(
+		'mode' => 'sandbox',
+		'http.ConnectionTimeOut' => 30,
+		'log.LogEnabled' => true,
+		'log.FileName' => '../PayPal.log',
+		'log.LogLevel' => 'FINE'
+	)
+);
+// Register the sdk_config.ini file in current directory
+// as the configuration source.
+// define("PP_CONFIG_PATH", __DIR__);