class WP_Widget_RSS {}

Source

class WP_Widget_RSS extends WP_Widget {	/** * Sets up a new RSS widget instance. * * @since 2.8.0 */	public function __construct() {	$widget_ops = array(	'description' => __( 'Entries from any RSS or Atom feed.' ),	'customize_selective_refresh' => true,	'show_instance_in_rest' => true,	);	$control_ops = array(	'width' => 400,	'height' => 200,	);	parent::__construct( 'rss', __( 'RSS' ), $widget_ops, $control_ops );	}	/** * Outputs the content for the current RSS widget instance. * * @since 2.8.0 * * @param array $args Display arguments including 'before_title', 'after_title', * 'before_widget', and 'after_widget'. * @param array $instance Settings for the current RSS widget instance. */	public function widget( $args, $instance ) {	if ( isset( $instance['error'] ) && $instance['error'] ) {	return;	}	$url = ! empty( $instance['url'] ) ? $instance['url'] : '';	while ( ! empty( $url ) && stristr( $url, 'http' ) !== $url ) {	$url = substr( $url, 1 );	}	if ( empty( $url ) ) {	return;	}	// Self-URL destruction sequence.	if ( in_array( untrailingslashit( $url ), array( site_url(), home_url() ), true ) ) {	return;	}	$rss = fetch_feed( $url );	$title = $instance['title'];	$desc = '';	$link = '';	if ( ! is_wp_error( $rss ) ) {	$desc = esc_attr( strip_tags( html_entity_decode( $rss->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) ) ) );	if ( empty( $title ) ) {	$title = strip_tags( $rss->get_title() );	}	$link = strip_tags( $rss->get_permalink() );	while ( ! empty( $link ) && stristr( $link, 'http' ) !== $link ) {	$link = substr( $link, 1 );	}	}	if ( empty( $title ) ) {	$title = ! empty( $desc ) ? $desc : __( 'Unknown Feed' );	}	/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */	$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );	if ( $title ) {	$feed_link = '';	$feed_url = strip_tags( $url );	$feed_icon = includes_url( 'images/rss.png' );	$feed_link = sprintf(	'<a class="rsswidget rss-widget-feed" href="%1$s"><img class="rss-widget-icon" style="border:0" width="14" height="14" src="%2$s" alt="%3$s"%4$s /></a> ',	esc_url( $feed_url ),	esc_url( $feed_icon ),	esc_attr__( 'RSS' ),	( wp_lazy_loading_enabled( 'img', 'rss_widget_feed_icon' ) ? ' loading="lazy"' : '' )	);	/** * Filters the classic RSS widget's feed icon link. * * Themes can remove the icon link by using `add_filter( 'rss_widget_feed_link', '__return_empty_string' );`. * * @since 5.9.0 * * @param string|false $feed_link HTML for link to RSS feed. * @param array $instance Array of settings for the current widget. */	$feed_link = apply_filters( 'rss_widget_feed_link', $feed_link, $instance );	$title = $feed_link . '<a class="rsswidget rss-widget-title" href="' . esc_url( $link ) . '">' . esc_html( $title ) . '</a>';	}	echo $args['before_widget'];	if ( $title ) {	echo $args['before_title'] . $title . $args['after_title'];	}	$format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';	/** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */	$format = apply_filters( 'navigation_widgets_format', $format );	if ( 'html5' === $format ) {	// The title may be filtered: Strip out HTML and make sure the aria-label is never empty.	$title = trim( strip_tags( $title ) );	$aria_label = $title ? $title : __( 'RSS Feed' );	echo '<nav aria-label="' . esc_attr( $aria_label ) . '">';	}	wp_widget_rss_output( $rss, $instance );	if ( 'html5' === $format ) {	echo '</nav>';	}	echo $args['after_widget'];	if ( ! is_wp_error( $rss ) ) {	$rss->__destruct();	}	unset( $rss );	}	/** * Handles updating settings for the current RSS widget instance. * * @since 2.8.0 * * @param array $new_instance New settings for this instance as input by the user via * WP_Widget::form(). * @param array $old_instance Old settings for this instance. * @return array Updated settings to save. */	public function update( $new_instance, $old_instance ) {	$testurl = ( isset( $new_instance['url'] ) && ( ! isset( $old_instance['url'] ) || ( $new_instance['url'] !== $old_instance['url'] ) ) );	return wp_widget_rss_process( $new_instance, $testurl );	}	/** * Outputs the settings form for the RSS widget. * * @since 2.8.0 * * @param array $instance Current settings. */	public function form( $instance ) {	if ( empty( $instance ) ) {	$instance = array(	'title' => '',	'url' => '',	'items' => 10,	'error' => false,	'show_summary' => 0,	'show_author' => 0,	'show_date' => 0,	);	}	$instance['number'] = $this->number;	wp_widget_rss_form( $instance );	} } 

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