Merge pull request #4 from AntoninoBonanno/master

Bug fix

.gitignore

@@ -1,4 +1,5 @@
 composer.phar
 composer.lock
 composer-test.lock
-vendor/
+vendor/
+.idea

README.md

@@ -2,23 +2,17 @@
 
 PHP SDK for [Scopus APIs](https://dev.elsevier.com/scopus.html)
 
-Currently supported APIs:
+Currently, supported APIs:
 - Scopus Search API
 - Abstract Retrieval API
 - Author Retrieval API
 - Affiliation Retrieval API
     - Search Author API
     - Citation Overview API
 
-Original Project: [https://github.com/kasparsj/scopus-api-php](https://github.com/kasparsj/scopus-api-php)
-
-Custom Project: [https://github.com/AntoninoBonanno/scopus-api-php](https://github.com/AntoninoBonanno/scopus-api-php)
-
 ## Installation
 
-`composer require kasparsj/scopus-search-api` (Original project)
-
-Overwrite this project to the original project if you want to use my updates
+`composer require kasparsj/scopus-search-api` 
 
 ## Usage:
 
@@ -63,10 +57,13 @@ foreach ($results->getEntries() as $entry) {
 
 https://kasparsj.github.io/scopus-api-php/
 
-## My contribution
-* Added Search Author API
-* Added Citation Overview API
-* Created a support function to retrieve Document of specific Author easly
-* Updated classes
+## Changelog
+- 14/11/2021 - v1.2
+  *  Bug fix
+- 19/05/2020 - v1.1
+  * Added Search Author API
+  * Added Citation Overview API
+  * Created a support function to retrieve Document of specific Author easly
+  * Updated classes
 
 [Bonanno Antonino](https://github.com/AntoninoBonanno)

composer.json

@@ -3,7 +3,7 @@
   "description": "Scopus API for PHP (Unofficial)",
   "minimum-stability": "stable",
   "license": "MIT",
-  "version": "1.1",
+  "version": "1.2",
   "authors": [
     {
       "name": "Kaspars Jaudzems",

src/Scopus/Response/AbstractCoredata.php

@@ -124,4 +124,9 @@ public function getIssn()
     {
         return $this->data['prism:issn'];
     }
+
+    public function hasError()
+    {
+        return isset($this->data['error']) ? $this->data['error'] : false;
+    }
 }

src/Scopus/Response/Entry.php

@@ -122,7 +122,7 @@ public function getYear()
         } else if ($this->getCoverDisplayDate() != null) {
             $date = date_parse($this->getCoverDisplayDate());
         }
-        return ($date) ? $date['year'] : null;
+        return (isset($date)) ? $date['year'] : null;
     }
 
     //Entry di SEARCH_AUTHOR_URI