<?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 ?>