--- a/lib/FeedItem.php +++ b/lib/FeedItem.php @@ -1,1 +1,168 @@ +<?php + /** + * Univarsel Feed Writer + * + * FeedItem class - Used as feed element in FeedWriter class + * + * @package UnivarselFeedWriter + * @author Anis uddin Ahmad <anisniit@gmail.com> + * @link http://www.ajaxray.com/projects/rss + */ + class FeedItem + { + private $elements = array(); //Collection of feed elements + private $version; + + /** + * Constructor + * + * @param contant (RSS1/RSS2/ATOM) RSS2 is default. + */ + function __construct($version = RSS2) + { + $this->version = $version; + } + + /** + * Add an element to elements array + * + * @access public + * @param srting The tag name of an element + * @param srting The content of tag + * @param array Attributes(if any) in 'attrName' => 'attrValue' format + * @return void + */ + public function addElement($elementName, $content, $attributes = null) + { + $this->elements[$elementName]['name'] = $elementName; + $this->elements[$elementName]['content'] = $content; + $this->elements[$elementName]['attributes'] = $attributes; + } + + /** + * Set multiple feed elements from an array. + * Elements which have attributes cannot be added by this method + * + * @access public + * @param array array of elements in 'tagName' => 'tagContent' format. + * @return void + */ + public function addElementArray($elementArray) + { + if(! is_array($elementArray)) return; + foreach ($elementArray as $elementName => $content) + { + $this->addElement($elementName, $content); + } + } + + /** + * Return the collection of elements in this feed item + * + * @access public + * @return array + */ + public function getElements() + { + return $this->elements; + } + + // Wrapper functions ------------------------------------------------------ + + /** + * Set the 'dscription' element of feed item + * + * @access public + * @param string The content of 'description' element + * @return void + */ + public function setDescription($description) + { + $tag = ($this->version == ATOM)? 'summary' : 'description'; + $this->addElement($tag, $description); + } + + /** + * @desc Set the 'title' element of feed item + * @access public + * @param string The content of 'title' element + * @return void + */ + public function setTitle($title) + { + $this->addElement('title', $title); + } + + /** + * Set the 'date' element of feed item + * + * @access public + * @param string The content of 'date' element + * @return void + */ + public function setDate($date) + { + if(! is_numeric($date)) + { + $date = strtotime($date); + } + + if($this->version == ATOM) + { + $tag = 'updated'; + $value = date(DATE_ATOM, $date); + } + elseif($this->version == RSS2) + { + $tag = 'pubDate'; + $value = date(DATE_RSS, $date); + } + else + { + $tag = 'dc:date'; + $value = date("Y-m-d", $date); + } + + $this->addElement($tag, $value); + } + + /** + * Set the 'link' element of feed item + * + * @access public + * @param string The content of 'link' element + * @return void + */ + public function setLink($link) + { + if($this->version == RSS2 || $this->version == RSS1) + { + $this->addElement('link', $link); + } + else + { + $this->addElement('link','',array('href'=>$link)); + $this->addElement('id', FeedWriter::uuid($link,'urn:uuid:')); + } + + } + + /** + * Set the 'encloser' element of feed item + * For RSS 2.0 only + * + * @access public + * @param string The url attribute of encloser tag + * @param string The length attribute of encloser tag + * @param string The type attribute of encloser tag + * @return void + */ + public function setEncloser($url, $length, $type) + { + $attributes = array('url'=>$url, 'length'=>$length, 'type'=>$type); + $this->addElement('enclosure','',$attributes); + } + + } // end of class FeedItem +?>