WebAPI を使って OpenPNE3 の日記の RSS フィードを吐き出す（Zend_Feed のテスト用）.php

<?php

define('SNS_TITLE', 'MySNS');
define('FEED_URL', 'http://example.com/api.php/feeds/diary');
define('APPEND_CDATA_TO_CONTENT', true);

// ---

require_once 'Zend/Loader/Autoloader.php';
$autoloader = Zend_Loader_Autoloader::getInstance();
$autoloader->setFallbackAutoloader(true);

$ch = curl_init(FEED_URL);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$xmlString = curl_exec($ch);
curl_close($ch);

if (!$xmlString)
{
  header('HTTP/1.0 404 Not Found');
  exit;
}

header('Cache-Control: private, max-age='.(60*30));

if (APPEND_CDATA_TO_CONTENT)
{
  $xmlString = _appendCDataToContent($xmlString);
}

$data = array(
  'title'   => SNS_TITLE.'の日記',
  'link'    => FEED_URL,
  'charset' => 'UTF-8',
  'entries' => array(),
);
$xml = simplexml_load_string($xmlString, 'SimpleXMLElement', LIBXML_NOCDATA);
foreach ($xml->entry as $entry)
{
  $data['entries'][] = array(
    'title'       => mb_strimwidth((string)$entry->title, 0, 150, '', 'UTF-8'),
    'link'        => (string)$entry->link[0]['href'],
    'description' => mb_strimwidth((string)$entry->content, 0, 300, '...', 'UTF-8'),
    'lastUpdate'  => strtotime((string)$entry->published),
    'author'      => (string)$entry->author->name,
  );
}

$rss = Zend_Feed::importArray($data, 'rss');
$rss->send();

function _appendCDataToContent($string)
{
  $search = array('<content>', '<content type="text">', '</content>');
  $replace = array('<content><![CDATA[', '<content type="text"><![CDATA[', ']]></content>');
  return str_replace($search, $replace, $string);
}