Updates to Sample Code

- Updated UI Presentation on samples
- Fixed Bugs

lib/PayPal/Api/Payment.php

@@ -247,7 +247,7 @@ class Payment extends ResourceModel
      * A payment can have more than one transaction, with each transaction establishing a contract between the payer and a payee
      *
      *
-     * @param \PayPal\Api\Transaction $transactions
+     * @param \PayPal\Api\Transaction[] $transactions
      *
      * @return $this
      */

lib/PayPal/Validation/JsonValidator.php

@@ -14,14 +14,18 @@ class JsonValidator
      * Helper method for validating if string provided is a valid json.
      *
      * @param string $string String representation of Json object
+     * @param bool $silent Flag to not throw \InvalidArgumentException
      * @return bool
      */
-    public static function validate($string)
+    public static function validate($string, $silent = false)
     {
         json_decode($string);
         if (json_last_error() != JSON_ERROR_NONE) {
-            //Throw an Exception for string or array
-            throw new \InvalidArgumentException("Invalid JSON String");
+            if ($silent == false) {
+                //Throw an Exception for string or array
+                throw new \InvalidArgumentException("Invalid JSON String");
+            }
+            return false;
         }
         return true;
     }

lib/PayPal/Validation/ModelAccessorValidator.php

@@ -30,7 +30,7 @@ class ModelAccessorValidator
                 if (!method_exists($class, $methodName)) {
                     //Delegate the error based on the choice
                     $className = is_object($class) ? get_class($class) : (string)$class;
-                    $errorMessage = "Missing Accessor: $className:$methodName. Please let us know by creating an issue at https://github.com/paypal/rest-api-sdk-php/issues";
+                    $errorMessage = "Missing Accessor: $className:$methodName. Please let us know by creating an issue at https://github.com/paypal/PayPal-PHP-SDK/issues";
                     PPLoggingManager::getInstance(__CLASS__)->warning($errorMessage);
                     if ($mode == 'strict') {
                         trigger_error($errorMessage, E_USER_NOTICE);
@@ -41,4 +41,4 @@ class ModelAccessorValidator
         }
         return true;
     }
-}
+}