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<?php
namespace Suin\RSSWriter;
/**
* Class Channel
* @package Suin\RSSWriter
*/
class Channel implements ChannelInterface
{
/** @var string */
protected $title;
/** @var string */
protected $url;
/** @var string */
protected $description;
/** @var string */
protected $language;
/** @var string */
protected $copyright;
/** @var int */
protected $pubDate;
/** @var int */
protected $lastBuildDate;
/** @var int */
protected $ttl;
/** @var ItemInterface[] */
protected $items = array();
/**
* Set channel title
* @param string $title
* @return $this
*/
public function title($title)
{
$this->title = $title;
return $this;
}
/**
* Set channel URL
* @param string $url
* @return $this
*/
public function url($url)
{
$this->url = $url;
return $this;
}
/**
* Set channel description
* @param string $description
* @return $this
*/
public function description($description)
{
$this->description = $description;
return $this;
}
/**
* Set ISO639 language code
*
* The language the channel is written in. This allows aggregators to group all
* Italian language sites, for example, on a single page. A list of allowable
* values for this element, as provided by Netscape, is here. You may also use
* values defined by the W3C.
*
* @param string $language
* @return $this
*/
public function language($language)
{
$this->language = $language;
return $this;
}
/**
* Set channel copyright
* @param string $copyright
* @return $this
*/
public function copyright($copyright)
{
$this->copyright = $copyright;
return $this;
}
/**
* Set channel published date
* @param int $pubDate Unix timestamp
* @return $this
*/
public function pubDate($pubDate)
{
$this->pubDate = $pubDate;
return $this;
}
/**
* Set channel last build date
* @param int $lastBuildDate Unix timestamp
* @return $this
*/
public function lastBuildDate($lastBuildDate)
{
$this->lastBuildDate = $lastBuildDate;
return $this;
}
/**
* Set channel ttl (minutes)
* @param int $ttl
* @return $this
*/
public function ttl($ttl)
{
$this->ttl = $ttl;
return $this;
}
/**
* Add item object
* @param ItemInterface $item
* @return $this
*/
public function addItem(ItemInterface $item)
{
$this->items[] = $item;
return $this;
}
/**
* Append to feed
* @param FeedInterface $feed
* @return $this
*/
public function appendTo(FeedInterface $feed)
{
$feed->addChannel($this);
return $this;
}
/**
* Return XML object
* @return SimpleXMLElement
*/
public function asXML()
{
$xml = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8" ?><channel></channel>', LIBXML_NOERROR | LIBXML_ERR_NONE | LIBXML_ERR_FATAL);
$xml->addChild('title', $this->title);
$xml->addChild('link', $this->url);
$xml->addChild('description', $this->description);
if ($this->language !== null) {
$xml->addChild('language', $this->language);
}
if ($this->copyright !== null) {
$xml->addChild('copyright', $this->copyright);
}
if ($this->pubDate !== null) {
$xml->addChild('pubDate', date(DATE_RSS, $this->pubDate));
}
if ($this->lastBuildDate !== null) {
$xml->addChild('lastBuildDate', date(DATE_RSS, $this->lastBuildDate));
}
if ($this->ttl !== null) {
$xml->addChild('ttl', $this->ttl);
}
foreach ($this->items as $item) {
$toDom = dom_import_simplexml($xml);
$fromDom = dom_import_simplexml($item->asXML());
$toDom->appendChild($toDom->ownerDocument->importNode($fromDom, true));
}
return $xml;
}
}