' . __( 'Adding an RSS feed to this site’s homepage is not supported, as it could lead to a loop that slows down your site. Try using another block, like the Latest Posts block, to list posts from the site.' ) . '
'; } $rss = fetch_feed( $attributes['feedURL'] ); if ( is_wp_error( $rss ) ) { return '
' . __( 'RSS Error:' ) . ' ' . esc_html( $rss->get_error_message() ) . '
'; } if ( ! $rss->get_item_quantity() ) { return '
' . __( 'An error has occurred, which probably means the feed is down. Try again later.' ) . '
'; } $rss_items = $rss->get_items( 0, $attributes['itemsToShow'] ); $list_items = ''; foreach ( $rss_items as $item ) { $title = esc_html( trim( strip_tags( $item->get_title() ) ) ); if ( empty( $title ) ) { $title = __( '(no title)' ); } $link = $item->get_link(); $link = esc_url( $link ); if ( $link ) { $title = "{$title}"; } $title = "
{$title}
"; $date = ''; if ( $attributes['displayDate'] ) { $date = $item->get_date( 'U' ); if ( $date ) { $date = sprintf( ' ', esc_attr( date_i18n( get_option( 'c' ), $date ) ), esc_attr( date_i18n( get_option( 'date_format' ), $date ) ) ); } } $author = ''; if ( $attributes['displayAuthor'] ) { $author = $item->get_author(); if ( is_object( $author ) ) { $author = $author->get_name(); $author = '' . sprintf( /* translators: %s: the author. */ __( 'by %s' ), esc_html( strip_tags( $author ) ) ) . ''; } } $excerpt = ''; if ( $attributes['displayExcerpt'] ) { $excerpt = html_entity_decode( $item->get_description(), ENT_QUOTES, get_option( 'blog_charset' ) ); $excerpt = esc_attr( wp_trim_words( $excerpt, $attributes['excerptLength'], ' […]' ) ); // Change existing [...] to […]. if ( '[...]' === substr( $excerpt, -5 ) ) { $excerpt = substr( $excerpt, 0, -5 ) . '[…]'; } $excerpt = '
' . esc_html( $excerpt ) . '
'; } $list_items .= "
  • {$title}{$date}{$author}{$excerpt}
    • "; } $classnames = array(); if ( isset( $attributes['blockLayout'] ) && 'grid' === $attributes['blockLayout'] ) { $classnames[] = 'is-grid'; } if ( isset( $attributes['columns'] ) && 'grid' === $attributes['blockLayout'] ) { $classnames[] = 'columns-' . $attributes['columns']; } if ( $attributes['displayDate'] ) { $classnames[] = 'has-dates'; } if ( $attributes['displayAuthor'] ) { $classnames[] = 'has-authors'; } if ( $attributes['displayExcerpt'] ) { $classnames[] = 'has-excerpts'; } $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classnames ) ) ); return sprintf( '', $wrapper_attributes, $list_items ); } /** * Registers the `core/rss` block on server. */ function register_block_core_rss() { register_block_type_from_metadata( __DIR__ . '/rss', array( 'render_callback' => 'render_block_core_rss', ) ); } add_action( 'init', 'register_block_core_rss' );