class-video-sitemap.php

/**
     * Build the `<url>` tag for a given URL.
     *
     * @param  array    $url      Array of parts that make up this entry.
     * @param  Renderer $renderer Sitemap renderer class object.
     * @return string
     */
    public function sitemap_url( $url, $renderer ) {
        $output  = $renderer->newline( '<url>', 1 );
        $output .= $renderer->newline( '<loc>' . $renderer->encode_url_rfc3986( htmlspecialchars( $url['loc'] ) ) . '</loc>', 2 );

        if ( ! empty( $url['videos'] ) ) {
            foreach ( $url['videos'] as $video ) {
                $date = null;
                if ( ! empty( $video['publication_date'] ) ) {
                    // Create a DateTime object date in the correct timezone.
                    $date = $renderer->timezone->format_date( $video['publication_date'] );
                }

                $output .= $renderer->newline( '<video:video>', 2 );

                $output .= $renderer->add_cdata( $video['title'], 'video:title', 3 );
                $output .= empty( $date ) ? '' : $renderer->newline( '<video:publication_date>' . htmlspecialchars( $date ) . '</video:publication_date>', 3 );
                $output .= $renderer->add_cdata( $video['description'], 'video:description', 3 );

                if ( ! empty( $video['player_loc'] ) ) {
                    $output .= $renderer->newline( '<video:player_loc>' . esc_url( $video['player_loc'] ) . '</video:player_loc>', 3 );
                }

                foreach ( [ 'thumbnail_loc', 'content_loc' ] as $prop ) {
                    if ( empty( $video[ $prop ] ) ) {
                        continue;
                    }

                    /**
                     * Filter the video content and thumbnail location:
                     * - rank_math/sitemap/video/thumbnail_loc
                     * - rank_math/sitemap/video/content_loc
                     */
                    $value = $this->do_filter( "sitemap/video/{$prop}", $video[ $prop ] );

                    $output .= $renderer->newline( "<video:{$prop}>" . esc_url( $value ) . "</video:{$prop}>", 3 );
                }

                if ( ! empty( $video['tags'] ) ) {
                    $tags = explode( ', ', $video['tags'] );
                    foreach ( $tags as $tag ) {
                        $output .= $renderer->add_cdata( $tag, 'video:tag', 3 );
                    }
                }
                $output .= $renderer->add_cdata( $video['modification_date'], 'video:modification_date', 3 );

                if ( ! empty( $video['rating'] ) ) {
                    $output .= $renderer->newline( '<video:rating>' . absint( $video['rating'] ) . '</video:rating>', 3 );
                }

                if ( ! empty( $video['duration'] ) ) {
                    $output .= $renderer->newline( '<video:duration>' . esc_html( $video['duration'] ) . '</video:duration>', 3 );
                }

                $output .= $renderer->newline( '<video:family_friendly>' . $video['family_friendly'] . '</video:family_friendly>', 3 );
                $output .= $renderer->newline( '<video:uploader info="' . get_author_posts_url( $url['author'] ) . '">' . ent2ncr( esc_html( get_the_author_meta( 'display_name', $url['author'] ) ) ) . '</video:uploader>', 3 );
                $output .= $renderer->newline( '</video:video>', 2 );
            }
        }
        $output .= $renderer->newline( '</url>', 1 );

        /**
         * Filters the output for the sitemap url tag.
         *
         * @param string $output The output for the sitemap url tag.
         * @param array  $url    The sitemap url array on which the output is based.
         */
        return $this->do_filter( 'sitemap_url', $output, $url );
    }