Add downloadable+array query data

Message/Http/Header.php

@@ -15,6 +15,7 @@ declare(strict_types=1);
 namespace phpOMS\Message\Http;
 
 use phpOMS\Message\HeaderAbstract;
+use phpOMS\System\MimeType;
 
 /**
  * Response class.
@@ -86,6 +87,25 @@ final class Header extends HeaderAbstract
         return true;
     }
 
+    /**
+     * Set header as downloadable
+     *
+     * @param string $name Download name
+     * @param string $type Download file type
+     *
+     * @return void
+     *
+     * @since  1.0.0
+     */
+    public function setDownloadable(string $name, string $type) : void
+    {
+        $this->set('Content-Type', MimeType::M_BIN, true);
+        $this->set('Content-Transfer-Encoding', 'Binary', true);
+        $this->set(
+            'Content-disposition', 'attachment; filename="' . $name . '.' . $type . '"'
+        , true);
+    }
+
     /**
      * Is security header.
      *

Message/Http/Request.php

@@ -212,7 +212,11 @@ final class Request extends RequestAbstract
         UriFactory::setQuery('/lang', $this->header->getL11n()->getLanguage());
 
         foreach ($this->data as $key => $value) {
-            UriFactory::setQuery('?' . $key, $value);
+            if (\is_array($value)) {
+                UriFactory::setQuery('?' . $key, \implode(',', $value));
+            } else {
+                UriFactory::setQuery('?' . $key, $value);
+            }
         }
     }