WordPress, RSS, XML, plugin – Créer un feed RSS personnalisé sous WordPress à l’aide d’un plugin

	<?php
	/*
	Plugin Name: he3myfeed_2
	Plugin URI: http://hecube.net
	Description: Create a specific feed for your website <code>url_of_your_site/feed/myfeed</code>
	Version: 1.0
	Author: Bruno Flaven
	Author URI: http://hecube.net
	*/
 
	// Add permalink structure and flush on plugin activation
	register_activation_hook( __FILE__, 'he3corporatefeed_activate' );
	function he3corporatefeed_activate() {
	    he3corporatefeed_add_feed();
	    flush_rewrite_rules();
	}
 
	// Flush on plugin deactivation
	register_deactivation_hook( __FILE__, 'he3corporatefeed_deactivate' );
	function he3corporatefeed_deactivate() {
	    flush_rewrite_rules();
	}
 
	// Register a feed named myfeed
	add_filter( 'init', 'he3corporatefeed_add_feed' );
	function he3corporatefeed_add_feed() {
	    add_feed( 'myfeed', 'he3corporatefeed_do_feed' );
	}
 
	// Echo the feed
	function he3corporatefeed_do_feed( $in ) {
 
	    // Make custom query to get the 5 last posts from the category 24
		$args = array( 
			'post_type' => 'attachment', 
			'post_status' => 'inherit' 
			);
 
		// Make custom query to get last attachments
		query_posts( $args );
 
 
	    header('Content-Type: ' . feed_content_type('rss-http') . '; charset=' . get_option('blog_charset'), true);
		echo '<?xml version="1.0" encoding="'.get_option('blog_charset').'"?'.'>';
 
	?>
	<?php
	echo "n";
	echo '<!-- My Feed -->';
	?>
 
	<rss version="2.0"
		xmlns:content="http://purl.org/rss/1.0/modules/content/"
		xmlns:wfw="http://wellformedweb.org/CommentAPI/"
		xmlns:dc="http://purl.org/dc/elements/1.1/"
		xmlns:atom="http://www.w3.org/2005/Atom"
		xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
		xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
		<?php do_action('rss2_ns'); ?>
	>
 
	<channel>
		<title><?php bloginfo_rss('name'); wp_title_rss(); ?></title>
		<atom:link href="<?php self_link(); ?>" rel="self" type="application/rss+xml" />
		<link><?php bloginfo_rss('url') ?></link>
		<description><?php bloginfo_rss("description") ?></description>
		<lastBuildDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_lastpostmodified('GMT'), false); ?></lastBuildDate>
		<language><?php echo get_option('rss_language'); ?></language>
		<sy:updatePeriod><?php echo apply_filters( 'rss_update_period', 'hourly' ); ?></sy:updatePeriod>
		<sy:updateFrequency><?php echo apply_filters( 'rss_update_frequency', '1' ); ?></sy:updateFrequency>
		<?php do_action('rss2_head'); ?>
		<?php while( have_posts()) : the_post(); ?>
		<item>
			<title><?php the_title_rss() ?></title>
			<link><?php the_permalink_rss() ?></link>
			<comments><?php comments_link_feed(); ?></comments>
			<pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_post_time('Y-m-d H:i:s', true), false); ?></pubDate>
			<dc:creator><?php the_author() ?></dc:creator>
			<?php the_category_rss('rss2') ?>
 
			<guid isPermaLink="false"><?php the_guid(); ?></guid>
	<?php if (get_option('rss_use_excerpt')) : ?>
			<description><![CDATA[<?php the_excerpt_rss() ?>]]></description>
	<?php else : ?>
			<description><![CDATA[<?php the_excerpt_rss() ?>]]></description>
		<?php if ( strlen( $post->post_content ) > 0 ) : ?>
			<content:encoded><![CDATA[<?php the_content_feed('rss2') ?>]]></content:encoded>
		<?php else : ?>
			<content:encoded><![CDATA[<?php the_excerpt_rss() ?>]]></content:encoded>
		<?php endif; ?>
	<?php endif; ?>
			<wfw:commentRss><?php echo esc_url( get_post_comments_feed_link(null, 'rss2') ); ?></wfw:commentRss>
			<slash:comments><?php echo get_comments_number(); ?></slash:comments>
	<?php rss_enclosure(); ?>
		<?php do_action('rss2_item'); ?>
		</item>
		<?php endwhile; ?>
	</channel>
	</rss>
 
	    <?php
	}

 
<?php
/**
 * RSS2 Feed Template for displaying RSS2 Posts feed.
 *
 * @package WordPress
 */
 
header('Content-Type: ' . feed_content_type('rss-http') . '; charset=' . get_option('blog_charset'), true);
$more = 1;
 
echo '<?xml version="1.0" encoding="'.get_option('blog_charset').'"?'.'>'; ?>
 
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	<?php do_action('rss2_ns'); ?>
>
 
<channel>
	<title><?php bloginfo_rss('name'); wp_title_rss(); ?></title>
	<atom:link href="<?php self_link(); ?>" rel="self" type="application/rss+xml" />
	<link><?php bloginfo_rss('url') ?></link>
	<description><?php bloginfo_rss("description") ?></description>
	<lastBuildDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_lastpostmodified('GMT'), false); ?></lastBuildDate>
	<language><?php echo get_option('rss_language'); ?></language>
	<sy:updatePeriod><?php echo apply_filters( 'rss_update_period', 'hourly' ); ?></sy:updatePeriod>
	<sy:updateFrequency><?php echo apply_filters( 'rss_update_frequency', '1' ); ?></sy:updateFrequency>
	<?php do_action('rss2_head'); ?>
	<?php while( have_posts()) : the_post(); ?>
	<item>
		<title><?php the_title_rss() ?></title>
		<link><?php the_permalink_rss() ?></link>
		<comments><?php comments_link_feed(); ?></comments>
		<pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_post_time('Y-m-d H:i:s', true), false); ?></pubDate>
		<dc:creator><?php the_author() ?></dc:creator>
		<?php the_category_rss('rss2') ?>
 
		<guid isPermaLink="false"><?php the_guid(); ?></guid>
<?php if (get_option('rss_use_excerpt')) : ?>
		<description><![CDATA[<?php the_excerpt_rss() ?>]]></description>
<?php else : ?>
		<description><![CDATA[<?php the_excerpt_rss() ?>]]></description>
	<?php if ( strlen( $post->post_content ) > 0 ) : ?>
		<content:encoded><![CDATA[<?php the_content_feed('rss2') ?>]]></content:encoded>
	<?php else : ?>
		<content:encoded><![CDATA[<?php the_excerpt_rss() ?>]]></content:encoded>
	<?php endif; ?>
<?php endif; ?>
		<wfw:commentRss><?php echo esc_url( get_post_comments_feed_link(null, 'rss2') ); ?></wfw:commentRss>
		<slash:comments><?php echo get_comments_number(); ?></slash:comments>
<?php rss_enclosure(); ?>
	<?php do_action('rss2_item'); ?>
	</item>
	<?php endwhile; ?>
</channel>
</rss>