优化查询代码；增加RSS1

app/common/tools/Rss.php

@@ -0,0 +1,48 @@
+<?php
+namespace app\common\tools;
+
+use FeedWriter\RSS1;
+
+class Rss
+{
+    public static function initRss1()
+    {
+        $feed = new RSS1();
+
+
+        $feed->setTitle(Site::name());
+        $feed->setLink(Site::indexUrl());
+        $feed->setDescription(Site::desc());
+
+        //It's important for RSS 1.0
+        $feed->setChannelAbout(Site::keywords());
+
+        // An image is optional.
+        $feed->setImage(Site::logo(), 'PHP武器库头像', get_source_link('/'));
+
+        //Adding a feed. Generally this portion will be in a loop and add all feeds.
+
+        $list_post = Site::mapRecentlyPost();
+
+        foreach ($list_post as $model_post) {
+            //Create an empty FeedItem
+
+            $new_item = $feed->createNewItem();
+
+            $new_item->setTitle($model_post->title);
+
+            $new_item->setLink($model_post->read_url);
+            //The parameter is a timestamp for setDate() function
+            $new_item->setDate($model_post->publish_time);
+            $new_item->setDescription($model_post->desc);
+            //Use core addElement() function for other supported optional elements
+
+            //Now add the feed item
+            $feed->addItem($new_item);
+        }
+
+        $content = $feed->generateFeed();
+
+        return $content;
+    }
+}