Add getChannelsById

Author: Javier Martínez

src/Youtube.php

@@ -338,6 +338,24 @@ public function getChannelById($id, $optionalParams = false)
         return $this->decodeSingle($apiData);
     }
 
+    /**
+     * @param array $ids
+     * @return \StdClass
+     * @throws \Exception
+     */
+    public function getChannelsById($ids = array(), $optionalParams = false)
+    {
+        $API_URL = $this->getApi('channels.list');
+        $params = array(
+            'id' => implode(',', $ids),
+            'part' => 'id,snippet,contentDetails,statistics,invideoPromotion'
+        );
+        if($optionalParams){
+            $params = array_merge($params, $optionalParams);
+        }
+        $apiData = $this->api_get($API_URL, $params);
+        return $this->decodeList($apiData);
+    }
 
     /**
      * @param $channelId

tests/YoutubeTest.php

@@ -225,6 +225,19 @@ public function testGetChannelById()
         $this->assertObjectHasAttribute('statistics', $response);
     }
 
+    public function testGetChannelsById()
+    {
+        $channels = array('UCk1SpWNzOs4MYmr0uICEntg', 'UCK8sQmJBp8GCxrOtXWBpyEA');
+        $response = $this->youtube->getChannelsById($channels, $this->optionParams);
+
+        $this->assertTrue(count($response) === 2);
+        $this->assertEquals('youtube#channel', $response[0]->kind);
+        $this->assertObjectHasAttribute('snippet', $response[0]);
+        $this->assertObjectHasAttribute('contentDetails', $response[0]);
+        $this->assertObjectHasAttribute('statistics', $response[0]);
+    }
+
+
     public function testGetPlaylistsByChannelId()
     {
         $GOOGLE_CHANNELID = 'UCK8sQmJBp8GCxrOtXWBpyEA';