Updated User Agent & More Samples for Billing Plans

- Fixed versioning in User Agent.
- Updated Billing Plan sample to update Payment definitions
- Docs & Tests

lib/PayPal/Api/PatchRequest.php

@@ -81,6 +81,6 @@ class PatchRequest extends PPModel
         foreach ($this->getPatches() as $patch) {
             $json[] = $patch->toArray();
         }
-        return json_encode($json, $options);
+        return str_replace('\\/', '/', json_encode($json, $options));
     }
 }

lib/PayPal/Auth/OAuthTokenCredential.php

@@ -184,7 +184,7 @@ class OAuthTokenCredential extends ResourceModel
     {
         $base64ClientID = base64_encode($clientId . ":" . $clientSecret);
         $headers = array(
-            "User-Agent"    => PPUserAgent::getValue(RestHandler::$sdkName, RestHandler::$sdkVersion),
+            "User-Agent"    => PPUserAgent::getValue(PPConstants::SDK_NAME, PPConstants::SDK_VERSION),
             "Authorization" => "Basic " . $base64ClientID,
             "Accept"        => "*/*"
         );

lib/PayPal/Core/PPConstants.php

@@ -12,7 +12,7 @@ class PPConstants
 {
 
     const SDK_NAME = 'PayPal-PHP-SDK';
-    const SDK_VERSION = '0.14.0';
+    const SDK_VERSION = '0.14.1';
 
     const REST_SANDBOX_ENDPOINT = "https://api.sandbox.paypal.com/";
     const OPENID_REDIRECT_SANDBOX_URL = "https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect";

lib/PayPal/Rest/RestHandler.php

@@ -9,6 +9,7 @@ use PayPal\Auth\OAuthTokenCredential;
 use PayPal\Common\PPUserAgent;
 use PayPal\Core\PPConstants;
 use PayPal\Core\PPCredentialManager;
+use PayPal\Core\PPHttpConfig;
 use PayPal\Exception\PPConfigurationException;
 use PayPal\Exception\PPInvalidCredentialException;
 use PayPal\Exception\PPMissingCredentialException;
@@ -26,20 +27,6 @@ class RestHandler implements IPPHandler
      */
     private $apiContext;
 
-    /**
-     * Public Variable
-     *
-     * @var string $sdkName
-     */
-    public static $sdkName = "rest-sdk-php";
-
-    /**
-     * Public Variable
-     *
-     * @var string $sdkVersion
-     */
-    public static $sdkVersion = "0.13.2";
-
     /**
      * Construct
      *
@@ -51,7 +38,7 @@ class RestHandler implements IPPHandler
     }
 
     /**
-     * @param \Paypal\Core\PPHttpConfig $httpConfig
+     * @param PPHttpConfig $httpConfig
      * @param string                    $request
      * @param mixed                     $options
      * @return mixed|void
@@ -87,7 +74,7 @@ class RestHandler implements IPPHandler
         );
 
         if (!array_key_exists("User-Agent", $httpConfig->getHeaders())) {
-            $httpConfig->addHeader("User-Agent", PPUserAgent::getValue(self::$sdkName, self::$sdkVersion));
+            $httpConfig->addHeader("User-Agent", PPUserAgent::getValue(PPConstants::SDK_NAME, PPConstants::SDK_VERSION));
         }
 
         if (!is_null($credential) && $credential instanceof OAuthTokenCredential && is_null($httpConfig->getHeader('Authorization'))) {