rss.php

<?php
/** 
 * rss.php
 * 
 * RSS feed generator - accessible at /rss.php
 * Browsers auto-detect RSS feeds via link tag in header
 * 
 * @category rss.php file to write RSS feeds
 * @author M.Noermoehammad
 * @license https://opensource.org/licenses/MIT MIT License
 * @version 1.0
 * 
 */
require __DIR__ . '/lib/main.php';

header('Content-Type: application/rss+xml; charset=UTF-8');

$app_title = isset(app_info()['site_name']) ?  app_info()['site_name'] : "";
$app_link = isset(app_info()['app_url']) ? app_info()['app_url'] : "";
$app_description = isset(app_info()['site_description']) ? app_info()['site_description'] : "";

$postProviderModel = class_exists('PostModel') ? new PostModel() : "";
$feeds = class_exists('FrontContentModel') ? FrontContentModel::frontPostsFeed(app_reading_setting()['post_per_rss'], $postProviderModel) : [];

if (is_iterable($feeds)) {

  $rss = class_exists('RSSWriter') ? new RSSWriter($app_title, $app_link, $app_description) : "";

  foreach ($feeds as $feed) {

    $feed_title = isset($feed['post_title']) ? htmlout($feed['post_title']) : "";
    $feed_link = isset($feed['ID']) ? permalinks($feed['ID'])['post'] : "";
    $description = isset($feed['post_content']) ? htmlout(strip_tags(nl2br(html_entity_decode($feed['post_content'])))) : "";
    $feed_description = substr($description, 0, 220);
    $feed_description = substr($description, 0, strrpos($feed_description, " "));

    $rss->addItem($feed_title, $feed_link, $feed_description);
  }
  
  print $rss->saveXML();
}