= $recentCutoff &&
!in_array($item['itemid'], $includedIds);
});
// Sort items by publication date (newest first)
usort($recentItems, fn($a, $b) => $b['published'] <=> $a['published']);
// Generate RSS feed
$rss = new SimpleXMLElement('');
$channel = $rss->addChild('channel');
$channel->addChild('title', 'IndieBlog Feed (Recent)');
$channel->addChild('link', 'https://indieblog.page/');
$channel->addChild('description', 'RSS feed of articles published in the last 24 hours');
$channel->addChild('language', 'en');
// Add recent items to RSS feed
$newEntries = [];
foreach ($recentItems as $item) {
$rssItem = $channel->addChild('item');
$rssItem->addChild('title', htmlspecialchars($item['itemtitle'] ?? 'No title'));
$rssItem->addChild('link', htmlspecialchars($item['itemurl'] ?? ''));
$rssItem->addChild('pubDate', date(DATE_RSS, $item['published']));
// Fetch original RSS feed content for the entry
$originalContent = fetchOriginalContent($item['itemurl']);
$rssItem->addChild('description', htmlspecialchars($originalContent ?? $item['feedtitle'] ?? 'No content'));
$newEntries[] = $item['itemid'];
}
// Update cache with newly processed IDs
if (!empty($newEntries)) {
file_put_contents($cacheFile, implode("\n", array_merge($includedIds, $newEntries)));
}
// Save RSS feed
$rss->asXML($rssFile);
/**
* Fetches the original content from a given URL.
*
* @param string $url The URL of the article to fetch.
* @return string|null The extracted content, or null if unavailable.
*/
function fetchOriginalContent(string $url): ?string
{
$html = @file_get_contents($url);
if (!$html) {
return null;
}
// Extract content between tags (basic extraction, adapt as needed)
if (preg_match('/(.*?)<\/body>/si', $html, $matches)) {
// Clean HTML content (strip tags, keep minimal formatting)
return strip_tags($matches[1], '
');
}
return null;
}