schema = [ '@context' => 'https://schema.org', '@type' => 'BreadcrumbList', 'itemListElement' => [], ]; foreach ( $this->list as $position => $crumb ) { $this->schema['itemListElement'][] = [ '@type' => 'ListItem', 'position' => $position + 1, 'item' => [ '@id' => esc_url( $crumb['url'] ), 'name' => wp_strip_all_tags( $crumb['title'] ), ], ]; } $this->output = "' . "\n"; } }