function write_rss()
{
global $post_data;
$item = array('guid', 'title', 'pubDate', 'link', 'description');
$rss_filename = 'rss-blogfeed.xml';
// Check if RSS file exist
if (file_exists($rss_file) && filesize($rss_file) != 0) {
$rss_update = new DOMDocument();
$rss_update->load($rss_file);
} else {
try {
$rss_file = new DOMDocument('1.0', 'utf-8');
$rss_file->formatOutput = true;
//Create the rss tag and set the version 2.0
$rss_tag = $rss_file->crateElement('rss');
$rss_attr = $rss_file->createAttribute('version');
$rss_attr->value = '2.0';
//Append attribute to rss tag
$rss_tag->appendChild($rss_attr);
//Create channel
$channel_element = $rss_file->createElement('channel');
//Create channel children and append to it.
foreach ($channel as $channel_tag) {
$t_chan = $rss_file->createElement($channel_tag);
$channel_element->appendChild($t_chan);
}
//Create item
$item_element = $rss_file->createElement('item');
//Create item children and append to it
foreach ($item as $item_tag) {
$t_item = $rss_file->createElement($item_tag);
$item_element->appendChild($t_item);
}
//Append item to channel
$channel_element->appendChild($item_element);
//Append channel to rss
$rss_tag->appendChild($rss_tag);
//Append rss to file
$rss_file->appendChild($rss_tag);
$rss_file->save($rss_filename);
} catch (Exception $e) {
// Log error if failing
}
}
}
