Code clean up.

app/Export/Exporter/BasicExporter.php

@@ -18,7 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 declare(strict_types=1);
 
 namespace FireflyIII\Export\Exporter;
@@ -27,13 +26,11 @@ use FireflyIII\Models\ExportJob;
 use Illuminate\Support\Collection;
 
 /**
- * Class BasicExporter
- *
- * @package FireflyIII\Export\Exporter
+ * Class BasicExporter.
  */
 class BasicExporter
 {
-    /** @var  ExportJob */
+    /** @var ExportJob */
     protected $job;
     /** @var Collection */
     private $entries;

app/Export/Exporter/CsvExporter.php

@@ -18,7 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 declare(strict_types=1);
 
 namespace FireflyIII\Export\Exporter;
@@ -28,13 +27,11 @@ use League\Csv\Writer;
 use SplFileObject;
 
 /**
- * Class CsvExporter
- *
- * @package FireflyIII\Export\Exporter
+ * Class CsvExporter.
  */
 class CsvExporter extends BasicExporter implements ExporterInterface
 {
-    /** @var  string */
+    /** @var string */
     private $fileName;
 
     /**
@@ -69,7 +66,7 @@ class CsvExporter extends BasicExporter implements ExporterInterface
         // get field names for header row:
         $first   = $this->getEntries()->first();
         $headers = [];
-        if (!is_null($first)) {
+        if (null !== $first) {
             $headers = array_keys(get_object_vars($first));
         }
 
@@ -88,7 +85,6 @@ class CsvExporter extends BasicExporter implements ExporterInterface
         return true;
     }
 
-
     private function tempFile()
     {
         $this->fileName = $this->job->key . '-records.csv';

app/Export/Exporter/ExporterInterface.php

@@ -18,7 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with Firefly III.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 declare(strict_types=1);
 
 namespace FireflyIII\Export\Exporter;
@@ -27,9 +26,7 @@ use FireflyIII\Models\ExportJob;
 use Illuminate\Support\Collection;
 
 /**
- * Interface ExporterInterface
- *
- * @package FireflyIII\Export\Exporter
+ * Interface ExporterInterface.
  */
 interface ExporterInterface
 {
@@ -50,9 +47,6 @@ interface ExporterInterface
 
     /**
      * @param Collection $entries
-     *
-     * @return void
-     *
      */
     public function setEntries(Collection $entries);