Exemplo n.º 1
0
/**
 * Add Schema.org Microdata in the footer.
 *
 * Mainly used to embed microdata to front page, posts index page and archives.
 */
function amt_add_jsonld_schemaorg_metadata_head($post, $attachments, $embedded_media, $options)
{
    if (apply_filters('amt_exclude_schemaorg_metadata', false)) {
        return array();
    }
    $do_auto_schemaorg = $options["auto_schemaorg"] == "1" ? true : false;
    if (!$do_auto_schemaorg) {
        return array();
    }
    // Check if the microdata or the JSON-LD schema.org generator should be used.
    if ($options["schemaorg_force_jsonld"] == "0") {
        // Here we check for AMP page https://www.ampproject.org/
        // For AMP pages, if the Schema.org microdata generator has been enabled,
        // we enforce the JSON+LD form instead of microdata.
        if ($do_auto_schemaorg && function_exists('is_amp_endpoint') && is_amp_endpoint()) {
            // Do nothing and let it proceed with forced generation of JSON+LD Schema.org metadata.
        } else {
            return array();
        }
    }
    $metadata_arr = array();
    // Context
    $metadata_arr['@context'] = 'http://schema.org';
    // TODO: Check if this is_paged() check is needed. If removed, make sure that titles and descriptions are passed through multipage function.
    if (is_paged()) {
        //
        // Currently we do not support adding Schema.org metadata on
        // paged archives, if page number is >=2
        //
        // NOTE: This refers to an archive or the main page being split up over
        // several pages, this does not refer to a Post or Page whose content
        // has been divided into pages using the <!--nextpage--> QuickTag.
        //
        // Multipage content IS processed below.
        //
        return array();
    }
    // Custom content override
    if (amt_is_custom($post, $options)) {
        // Return metadata with:
        // add_filter( 'amt_custom_metadata_jsonld_schemaorg', 'my_function', 10, 5 );
        // Return an array of meta tags. Array item format: ['key_can_be_whatever'] = '<meta name="foo" content="bar" />'
        $metadata_arr = apply_filters('amt_custom_metadata_jsonld_schemaorg', $metadata_arr, $post, $options, $attachments, $embedded_media);
        // Default fron tpage displaying the latest posts.
    } elseif (amt_is_default_front_page()) {
        // On the front page we are adding two top level entities, so we remove
        // the existing context, as the entities need to be in an array and each
        // array item needs its own context.
        unset($metadata_arr['@context']);
        // Organization
        //
        // NOTICE:
        // Even if the front page has been set as the source of profile, this
        // this does not work with the default front page with the latest posts.
        // This is becuase this page does not have an author, which is essential
        // for the generated metadata on a page that is supposed to be a profile.
        // Therefore, an Organization object is always generated on the default
        // front page and it is never treated as a profile page by Add-Meta-Tags.
        //
        $organization_arr = array();
        // Context
        $organization_arr['@context'] = 'http://schema.org';
        // ID
        $organization_arr['@id'] = amt_get_schemaorg_entity_id('organization');
        $organization_arr = array_merge($organization_arr, amt_get_jsonld_schemaorg_publisher_array($options));
        // mainEntityOfPage
        $organization_arr['mainEntityOfPage'] = esc_url(trailingslashit(get_bloginfo('url')));
        // Get publisher/mainEntity metatags
        //        $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options ) );
        // WebSite
        $website_arr = array();
        // Context
        $website_arr['@context'] = 'http://schema.org';
        // ID
        $website_arr['@id'] = amt_get_schemaorg_entity_id('website');
        // Type
        $website_arr['@type'] = 'WebSite';
        // name
        $website_arr['name'] = esc_attr(get_bloginfo('name'));
        // headline - contains title information
        $website_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
        // alternateName (The WordPress tag line is used.)
        // TODO: use tag line. Needs feedback!
        // url
        $website_arr['url'] = esc_url_raw(trailingslashit(get_bloginfo('url')));
        // publisher
        //        $website_arr['publisher'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('organization') ) );
        // SearchAction
        // Scope BEGIN: SearchAction: http://schema.org/SearchAction
        //        $metadata_arr[] = '<!-- Scope BEGIN: SearchAction -->';
        //        $metadata_arr[] = '<span itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction">';
        $website_arr['potentialAction'] = array();
        $website_arr['potentialAction']['@type'] = 'SearchAction';
        // target
        // Scope BEGIN: EntryPoint: http://schema.org/EntryPoint
        $website_arr['potentialAction']['target'] = array();
        $website_arr['potentialAction']['target']['@type'] = 'EntryPoint';
        // urlTemplate
        $website_arr['potentialAction']['target']['urlTemplate'] = esc_url_raw(trailingslashit(get_bloginfo('url'))) . '?s={search_term}';
        // Scope END: EntryPoint
        //        $metadata_arr[] = '</span> <!-- Scope END: EntryPoint -->';
        // query-input
        // Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification
        //$metadata_arr[] = '<span itemprop="query-input" itemscope itemtype="http://schema.org/PropertyValueSpecification">';
        $website_arr['potentialAction']['query-input'] = array();
        $website_arr['potentialAction']['query-input']['@type'] = 'PropertyValueSpecification';
        // valueRequired
        $website_arr['potentialAction']['query-input']['valueRequired'] = 'True';
        // valueName
        $website_arr['potentialAction']['query-input']['valueName'] = 'search_term';
        // Scope END: PropertyValueSpecification
        //        $metadata_arr[] = '</span> <!-- Scope END: PropertyValueSpecification -->';
        // Scope END: SearchAction
        //        $metadata_arr[] = '</span> <!-- Scope END: SearchAction -->';
        // Scope END: WebSite
        //        $metadata_arr[] = '</span> <!-- Scope END: WebSite -->';
        $metadata_arr = array($organization_arr, $website_arr);
        // Front page using a static page
    } elseif (amt_is_static_front_page()) {
        // On the front page we are adding two top level entities, so we remove
        // the existing context, as the entities need to be in an array and each
        // array item needs its own context.
        unset($metadata_arr['@context']);
        $main_entity_arr = array();
        // Context
        $main_entity_arr['@context'] = 'http://schema.org';
        if ($options['author_profile_source'] == 'frontpage') {
            // ID
            $main_entity_arr['@id'] = amt_get_schemaorg_entity_id('person');
            // Author
            // Scope BEGIN: Person: http://schema.org/Person
            //        $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
            //        $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
            // Get author metatags
            $main_entity_arr = array_merge($main_entity_arr, amt_get_jsonld_schemaorg_author_array($post->post_author, $options));
            // mainEntityOfPage
            $main_entity_arr['mainEntityOfPage'] = esc_url(trailingslashit(get_bloginfo('url')));
            // Scope END: Person
            //        $metadata_arr[] = '</span> <!-- Scope END: Person -->';
        } else {
            // ID
            $main_entity_arr['@id'] = amt_get_schemaorg_entity_id('organization');
            // Organization
            $main_entity_arr = array_merge($main_entity_arr, amt_get_jsonld_schemaorg_publisher_array($options));
            // mainEntityOfPage
            $main_entity_arr['mainEntityOfPage'] = esc_url(trailingslashit(get_bloginfo('url')));
            // Get publisher/mainEntity metatags
            //            $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options ) );
        }
        // WebSite
        $website_arr = array();
        // Context
        $website_arr['@context'] = 'http://schema.org';
        // ID
        $website_arr['@id'] = amt_get_schemaorg_entity_id('website');
        // Type
        $website_arr['@type'] = 'WebSite';
        // name
        $website_arr['name'] = esc_attr(get_bloginfo('name'));
        // headline - contains title information
        $website_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
        // alternateName (The WordPress tag line is used.)
        // TODO: use tag line. Needs feedback!
        // url
        $website_arr['url'] = esc_url_raw(trailingslashit(get_bloginfo('url')));
        //        if ( $options['author_profile_source'] == 'frontpage' ) {
        // author
        //$website_arr['author'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('person') ) );
        //        } else {
        // publisher
        //$website_arr['publisher'] = array( '@id' => esc_attr(amt_get_schemaorg_entity_id('organization') ) );
        //        }
        // SearchAction
        // Scope BEGIN: SearchAction: http://schema.org/SearchAction
        //        $metadata_arr[] = '<!-- Scope BEGIN: SearchAction -->';
        //        $metadata_arr[] = '<span itemprop="potentialAction" itemscope itemtype="http://schema.org/SearchAction">';
        $website_arr['potentialAction'] = array();
        $website_arr['potentialAction']['@type'] = 'SearchAction';
        // target
        // Scope BEGIN: EntryPoint: http://schema.org/EntryPoint
        $website_arr['potentialAction']['target'] = array();
        $website_arr['potentialAction']['target']['@type'] = 'EntryPoint';
        // urlTemplate
        $website_arr['potentialAction']['target']['urlTemplate'] = esc_url_raw(trailingslashit(get_bloginfo('url'))) . '?s={search_term}';
        // Scope END: EntryPoint
        //        $metadata_arr[] = '</span> <!-- Scope END: EntryPoint -->';
        // query-input
        // Scope BEGIN: PropertyValueSpecification: http://schema.org/PropertyValueSpecification
        //$metadata_arr[] = '<span itemprop="query-input" itemscope itemtype="http://schema.org/PropertyValueSpecification">';
        $website_arr['potentialAction']['query-input'] = array();
        $website_arr['potentialAction']['query-input']['@type'] = 'PropertyValueSpecification';
        // valueRequired
        $website_arr['potentialAction']['query-input']['valueRequired'] = 'True';
        // valueName
        $website_arr['potentialAction']['query-input']['valueName'] = 'search_term';
        // Scope END: PropertyValueSpecification
        //        $metadata_arr[] = '</span> <!-- Scope END: PropertyValueSpecification -->';
        // Scope END: SearchAction
        //        $metadata_arr[] = '</span> <!-- Scope END: SearchAction -->';
        // Scope END: WebSite
        //        $metadata_arr[] = '</span> <!-- Scope END: WebSite -->';
        $metadata_arr = array($main_entity_arr, $website_arr);
        // Author archive
    } elseif (is_author()) {
        // Author object
        // NOTE: Inside the author archives `$post->post_author` does not contain the author object.
        // In this case the $post (get_queried_object()) contains the author object itself.
        // We also can get the author object with the following code. Slug is what WP uses to construct urls.
        // $author = get_user_by( 'slug', get_query_var( 'author_name' ) );
        // Also, ``get_the_author_meta('....', $author)`` returns nothing under author archives.
        // Access user meta with:  $author->description, $author->user_email, etc
        // $author = get_queried_object();
        $author = $post;
        // Person
        // Scope BEGIN: Person: http://schema.org/Person
        //        $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
        //        $metadata_arr[] = '<span itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
        $metadata_arr['@type'] = 'Person';
        // headline - contains title information
        // NOTE: Not supported for person
        //$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($options, $author) );
        // Get author metatags
        //        $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $author->ID, $options ) );
        $metadata_arr = array_merge($metadata_arr, amt_get_jsonld_schemaorg_author_array($author->ID, $options));
        // mainEntityOfPage
        $metadata_arr['mainEntityOfPage'] = esc_url(get_author_posts_url($author->ID));
        // Scope END: Person
        //        $metadata_arr[] = '</span> <!-- Scope END: Person -->';
    } elseif (amt_is_product()) {
        // Scope BEGIN: Product: http://schema.org/Product
        //        $metadata_arr[] = '<!-- Scope BEGIN: Product -->';
        //        $metadata_arr[] = '<div itemscope itemtype="http://schema.org/Product"' . amt_get_schemaorg_itemref('product') . '>';
        // Schema.org type
        $metadata_arr['@type'] = 'Product';
        // ID
        $metadata_arr['@id'] = amt_get_schemaorg_entity_id('product');
        // URL - Uses amt_get_permalink_for_multipage()
        $metadata_arr['url'] = esc_url_raw(amt_get_permalink_for_multipage($post));
        // mainEntityOfPage
        $metadata_arr['mainEntityOfPage'] = esc_url(amt_get_permalink_for_multipage($post));
        // name
        // Note: Contains multipage information through amt_process_paged()
        $metadata_arr['name'] = esc_attr(amt_process_paged(strip_tags(get_the_title($post->ID))));
        // headline - contains title information
        //$metadata_arr['headline'] = esc_attr( amt_get_title_for_metadata($options, $post) );
        // Description - We use the description defined by Add-Meta-Tags
        // Note: Contains multipage information through amt_process_paged()
        $content_desc = amt_get_content_description($post);
        //if ( empty($content_desc) ) {
        //    // Use the post body as the description. Product objects do not support body text.
        //    // TODO: ERROR here $post_body var does not exist
        //    $content_desc = sanitize_text_field( amt_sanitize_description( $post_body ) );
        //}
        if (!empty($content_desc)) {
            $metadata_arr['description'] = esc_attr(amt_process_paged($content_desc));
        }
        // Dates
        $metadata_arr['releaseDate'] = esc_attr(amt_iso8601_date($post->post_date));
        // Images
        $metadata_arr['image'] = array();
        // First check if a global image override URL has been entered.
        // If yes, use this image URL and override all other images.
        $image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
        if (!empty($image_data)) {
            $image_size = apply_filters('amt_image_size_product', 'full');
            $image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
            if (!empty($image_meta_array)) {
                $metadata_arr['image'] = array();
                $metadata_arr['image'][] = $image_meta_array;
            }
            //$global_image_override_url = amt_get_post_meta_image_url($post->ID);
            //if ( ! empty( $global_image_override_url ) ) {
            //            $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
            //            $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
            //   $current_image_obj = array();
            //   $current_image_obj['@type'] = 'ImageObject';
            //   $current_image_obj['url'] = esc_url_raw( $global_image_override_url );
            //   $current_image_obj['contentUrl'] = esc_url_raw( $global_image_override_url );
            //   $metadata_arr['image'][] = $current_image_obj;
            //            $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
            // Further image processing
        } else {
            // Set to true if any image attachments are found. Use to finally add the default image
            // if no image attachments have been found.
            $has_images = false;
            // Scope BEGIN: ImageObject: http://schema.org/ImageObject
            // Image - Featured image is checked first, so that it can be the first associated image.
            if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
                // Get the image attachment object
                $image = get_post(get_post_thumbnail_id($post->ID));
                // metadata BEGIN
                //                $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
                //                $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
                // Allow filtering of the image size.
                $image_size = apply_filters('amt_image_size_product', 'full');
                // Get image metatags.
                $metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array($options, $image, $size = $image_size);
                // metadata END
                //                $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
                // Images have been found.
                $has_images = true;
            }
            // Scope END: ImageObject
            // If no images have been found so far use the default image, if set.
            // Scope BEGIN: ImageObject: http://schema.org/ImageObject
            if ($has_images === false) {
                $image_data = amt_get_default_image_data();
                if (!empty($image_data)) {
                    $image_size = apply_filters('amt_image_size_product', 'full');
                    $image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
                    if (!empty($image_meta_array)) {
                        $metadata_arr['image'] = array();
                        $metadata_arr['image'][] = $image_meta_array;
                    }
                }
                //                $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
                //                $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
                //$current_image_obj = array();
                //$current_image_obj['@type'] = 'ImageObject';
                //$current_image_obj['url'] = esc_url_raw( $options["default_image_url"] );
                //$current_image_obj['contentUrl'] = esc_url_raw( $options["default_image_url"] );
                //$metadata_arr['image'][] = $current_image_obj;
                //                $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
            }
            // Scope END: ImageObject
        }
        // Extend the current metadata with properties of the Product object.
        // See: http://schema.org/Product
        $metadata_arr = apply_filters('amt_product_data_jsonld_schemaorg', $metadata_arr, $post);
        // Scope END: Product
        //        $metadata_arr[] = '</div> <!-- Scope END: Product -->';
        // Filtering of the generated Schema.org metadata
        $metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_product', $metadata_arr);
        // Add post body
        // Remove last closing '</div>' tag, add post body and re-add the closing div afterwards.
        //        $closing_product_tag = array_pop($metadata_arr);
        // Product objects do not support a 'text' itemprop. We just add a div for now
        // for consistency with Article objects.
        // TODO: it should allow filtering '<div>'
        //        $metadata_arr[] = '<div> <!-- Product text body: BEGIN -->';
        //        $metadata_arr[] = $post_body;
        //        $metadata_arr[] = '</div> <!-- Product text body: END -->';
        // Now add closing tag for Article
        //        $metadata_arr[] = $closing_product_tag;
        // Attachemnts
    } elseif (is_attachment()) {
        $mime_type = get_post_mime_type($post->ID);
        //$attachment_type = strstr( $mime_type, '/', true );
        // See why we do not use strstr(): http://www.codetrax.org/issues/1091
        $attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
        // Early metatags - Scope starts
        if ('image' == $attachment_type) {
            // Scope BEGIN: ImageObject: http://schema.org/ImageObject
            //            $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
            //            $metadata_arr[] = '<div itemscope itemtype="http://schema.org/ImageObject"' . amt_get_schemaorg_itemref('attachment_image') . '>';
        } elseif ('video' == $attachment_type) {
            // Scope BEGIN: VideoObject: http://schema.org/VideoObject
            //            $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->';
            //            $metadata_arr[] = '<div itemscope itemtype="http://schema.org/VideoObject"' . amt_get_schemaorg_itemref('attachment_video') . '>';
            // Schema.org type
            $metadata_arr['@type'] = 'VideoObject';
        } elseif ('audio' == $attachment_type) {
            // Scope BEGIN: AudioObject: http://schema.org/AudioObject
            //            $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->';
            //            $metadata_arr[] = '<div itemscope itemtype="http://schema.org/AudioObject"' . amt_get_schemaorg_itemref('attachment_audio') . '>';
            // Schema.org type
            $metadata_arr['@type'] = 'AudioObject';
        } else {
            // we do not currently support other attachment types, so we stop processing here
            return array();
        }
        // Metadata common to all attachments
        // Do not add a publisher on personal websites (static front page is source of author profile).
        if ($options['author_profile_source'] != 'frontpage' || !amt_has_page_on_front()) {
            // Publisher
            // Scope BEGIN: Organization: http://schema.org/Organization
            //        $metadata_arr[] = '<!-- Scope BEGIN: Organization -->';
            //        $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>';
            // Get publisher metatags
            //        $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
            $metadata_arr['publisher'] = amt_get_jsonld_schemaorg_publisher_array($options, $post->post_author);
            // Scope END: Organization
            //        $metadata_arr[] = '</span> <!-- Scope END: Organization -->';
        }
        // Author
        // Scope BEGIN: Person: http://schema.org/Person
        //        $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
        //        $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
        // Get author metatags
        $metadata_arr['author'] = amt_get_jsonld_schemaorg_author_array($post->post_author, $options);
        // Scope END: Person
        //        $metadata_arr[] = '</span> <!-- Scope END: Person -->';
        // name
        $metadata_arr['name'] = esc_attr(strip_tags(get_the_title($post->ID)));
        // headline - contains title information
        $metadata_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
        // Description - We use the description defined by Add-Meta-Tags
        $content_desc = amt_get_content_description($post);
        if (!empty($content_desc)) {
            $metadata_arr['description'] = esc_attr($content_desc);
        }
        // Dates
        $metadata_arr['datePublished'] = esc_attr(amt_iso8601_date($post->post_date));
        $metadata_arr['dateModified'] = esc_attr(amt_iso8601_date($post->post_modified));
        $metadata_arr['copyrightYear'] = esc_attr(mysql2date('Y', $post->post_date));
        // Language
        $metadata_arr['inLanguage'] = esc_attr(str_replace('-', '_', amt_get_language_content($options, $post)));
        // Thumbnail
        // A featured image is supported by video and audio attachments.
        // If one is set, then it is set as the thumbnail of the video/audio object.
        if ('video' == $attachment_type || 'audio' == $attachment_type) {
            if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
                // Thumbnail URL of the featured image
                $image_size = apply_filters('amt_image_size_attachment', 'full');
                $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), $image_size);
                $metadata_arr['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
                // Currently we do not add a full ImageObject for the attachment's featured image.
                // TODO: future
            }
        }
        // mainEntityOfPage
        $metadata_arr['mainEntityOfPage'] = esc_url(get_permalink($post->ID));
        // Metadata specific to each attachment type
        if ('image' == $attachment_type) {
            // Allow filtering of the image size.
            $image_size = apply_filters('amt_image_size_attachment', 'full');
            // Get image metatags. $post is an image object.
            $metadata_arr = array_merge($metadata_arr, amt_get_jsonld_schemaorg_image_array($options, $post, $size = $image_size, $is_representative = true));
            // Add the post body here
            //            $metadata_arr[] = $post_body;
            // Scope END: ImageObject
            //            $metadata_arr[] = '</div> <!-- Scope END: ImageObject -->';
        } elseif ('video' == $attachment_type) {
            // Video specific metatags
            // URL (links to image file)
            //$metadata_arr['url'] = esc_url_raw( get_permalink( $post->ID ) );
            $metadata_arr['url'] = esc_url_raw(wp_get_attachment_url($post->ID));
            // sameAs (links to attachment page)
            $metadata_arr['sameAs'] = esc_url_raw(get_permalink($post->ID));
            $metadata_arr['contentUrl'] = esc_url_raw(wp_get_attachment_url($post->ID));
            $metadata_arr['encodingFormat'] = esc_attr($mime_type);
            // Required by Google
            $metadata_arr['uploadDate'] = esc_attr(amt_iso8601_date($post->post_date));
            // Add the post body here
            //            $metadata_arr[] = $post_body;
            // Scope END: VideoObject
            //            $metadata_arr[] = '</div> <!-- Scope END: VideoObject -->';
        } elseif ('audio' == $attachment_type) {
            // Audio specific metatags
            // URL (links to image file)
            //$metadata_arr['url'] = esc_url_raw( get_permalink( $post->ID ) );
            $metadata_arr['url'] = esc_url_raw(wp_get_attachment_url($post->ID));
            // sameAs (links to attachment page)
            $metadata_arr['sameAs'] = esc_url_raw(get_permalink($post->ID));
            $metadata_arr['contentUrl'] = esc_url_raw(wp_get_attachment_url($post->ID));
            $metadata_arr['encodingFormat'] = esc_attr($mime_type);
            // Add the post body here
            //            $metadata_arr[] = $post_body;
            // Scope END: AudioObject
            //            $metadata_arr[] = '</div> <!-- Scope END: AudioObject -->';
        }
        // Filtering of the generated Schema.org metadata
        $metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_attachment', $metadata_arr);
        // Content
        // Posts, pages, custom content types (attachments excluded, caught in previous clause)
        // Note: content might be multipage. Process with amt_process_paged() wherever needed.
    } elseif (is_singular()) {
        // Set main metadata entity. By default this set to Article.
        $main_content_object = 'Article';
        // Check for Page
        // Main entity is set to WebPage on pages
        // DEV NOTE: Since many themes already set the WebPage itemscope on the
        // body element of the web page, set it to WebPage automatically would
        // result in duplicate entities. So this has to be done manually via
        // a filtering function.
        //        if  ( is_page() ) {
        //            $main_content_object = 'WebPage';
        //        }
        // Check for Review
        $review_data = amt_get_review_data($post);
        if (!empty($review_data)) {
            $main_content_object = 'Review';
        }
        // Allow filtering the main metadata object for content.
        $main_content_object = apply_filters('amt_schemaorg_object_main', $main_content_object);
        // Scope BEGIN: Article: http://schema.org/Article
        //        $metadata_arr[] = '<!-- Scope BEGIN: ' . esc_attr($main_content_object) . ' -->';
        //        $metadata_arr[] = '<div itemscope itemtype="http://schema.org/' . esc_attr($main_content_object) . '"' . amt_get_schemaorg_itemref('content') . '>';
        // Schema.org type
        $metadata_arr['@type'] = esc_attr($main_content_object);
        // Do not add a publisher on personal websites (static front page is source of author profile).
        if ($options['author_profile_source'] != 'frontpage' || !amt_has_page_on_front()) {
            // Publisher
            // Scope BEGIN: Organization: http://schema.org/Organization
            //        $metadata_arr[] = '<!-- Scope BEGIN: Organization -->';
            //        $metadata_arr[] = '<span itemprop="publisher" itemscope itemtype="http://schema.org/Organization"' . amt_get_schemaorg_itemref('organization') . '>';
            // Get publisher metatags
            //        $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_publisher_metatags( $options, $post->post_author ) );
            $metadata_arr['publisher'] = amt_get_jsonld_schemaorg_publisher_array($options, $post->post_author);
            // Scope END: Organization
            //        $metadata_arr[] = '</span> <!-- Scope END: Organization -->';
        }
        // Author
        // Scope BEGIN: Person: http://schema.org/Person
        //        $metadata_arr[] = '<!-- Scope BEGIN: Person -->';
        //        $metadata_arr[] = '<span itemprop="author" itemscope itemtype="http://schema.org/Person"' . amt_get_schemaorg_itemref('person_author') . '>';
        // Get author metatags
        //        $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_author_metatags( $post->post_author, $options ) );
        $metadata_arr['author'] = amt_get_jsonld_schemaorg_author_array($post->post_author, $options);
        // Scope END: Person
        //        $metadata_arr[] = '</span> <!-- Scope END: Person -->';
        // URL - Uses amt_get_permalink_for_multipage()
        $metadata_arr['url'] = esc_url_raw(amt_get_permalink_for_multipage($post));
        // mainEntityOfPage
        $metadata_arr['mainEntityOfPage'] = esc_url(amt_get_permalink_for_multipage($post));
        // Dates
        $metadata_arr['datePublished'] = esc_attr(amt_iso8601_date($post->post_date));
        $metadata_arr['dateModified'] = esc_attr(amt_iso8601_date($post->post_modified));
        $metadata_arr['copyrightYear'] = esc_attr(mysql2date('Y', $post->post_date));
        // Language
        $metadata_arr['inLanguage'] = esc_attr(str_replace('-', '_', amt_get_language_content($options, $post)));
        // name
        // Note: Contains multipage information through amt_process_paged()
        $metadata_arr['name'] = esc_attr(amt_process_paged(strip_tags(get_the_title($post->ID))));
        // headline - contains title information
        $metadata_arr['headline'] = esc_attr(amt_get_title_for_metadata($options, $post));
        // Description - We use the description defined by Add-Meta-Tags
        // Note: Contains multipage information through amt_process_paged()
        $content_desc = amt_get_content_description($post);
        if (!empty($content_desc)) {
            $metadata_arr['description'] = esc_attr(amt_process_paged($content_desc));
        }
        /*
        // Section: We use the first category as the section
        $first_cat = sanitize_text_field( amt_sanitize_keywords( amt_get_first_category($post) ) );
        if (!empty($first_cat)) {
            $metadata_arr[] = '<meta itemprop="articleSection" content="' . esc_attr( $first_cat ) . '" />';
        }
        */
        // Add articleSection in Article object only.
        if ($main_content_object == 'Article') {
            $categories = get_the_category($post->ID);
            $categories = apply_filters('amt_post_categories_for_schemaorg', $categories);
            foreach ($categories as $cat) {
                $section = trim($cat->cat_name);
                if (!empty($section) && $cat->slug != 'uncategorized') {
                    $metadata_arr['articleSection'] = esc_attr($section);
                }
            }
        }
        // Add review properties if Review
        if ($main_content_object == 'Review') {
            //            $metadata_arr[] = '<!-- Review Information BEGIN -->';
            //            $metadata_arr[] = amt_get_review_info_box( $review_data );
            //            $metadata_arr[] = '<!-- Review Information END -->';
            // Reviewed Item
            $metadata_arr['itemReviewed'] = array();
            $metadata_arr['itemReviewed']['@type'] = esc_attr($review_data['object']);
            $metadata_arr['itemReviewed']['name'] = esc_attr($review_data['name']);
            $metadata_arr['itemReviewed']['sameAs'] = esc_url_raw($review_data['sameAs']);
            // Extra properties of reviewed item
            foreach ($review_data['extra'] as $key => $value) {
                if (is_array($value)) {
                    // Add sub entity
                    // If it is an array, the 'object' property is mandatory
                    if (!array_key_exists('object', $value)) {
                        continue;
                    }
                    $metadata_arr['itemReviewed'][esc_attr($key)] = array();
                    $metadata_arr['itemReviewed'][esc_attr($key)]['@type'] = esc_attr($value['object']);
                    foreach ($value as $subkey => $subvalue) {
                        if ($subkey != 'object') {
                            if (in_array($subkey, array('url', 'sameAs'))) {
                                $metadata_arr['itemReviewed'][esc_attr($key)][esc_attr($subkey)] = esc_url_raw($subvalue);
                            } else {
                                $metadata_arr['itemReviewed'][esc_attr($key)][esc_attr($subkey)] = esc_attr($subvalue);
                            }
                        }
                    }
                } else {
                    // Add simple meta element
                    $metadata_arr['itemReviewed'][esc_attr($key)] = esc_attr($value);
                }
            }
            // Rating
            $metadata_arr['reviewRating'] = array();
            $metadata_arr['reviewRating']['@type'] = 'Rating';
            $metadata_arr['reviewRating']['ratingValue'] = esc_attr($review_data['ratingValue']);
            $bestrating = apply_filters('amt_schemaorg_review_bestrating', '5');
            $metadata_arr['reviewRating']['bestRating'] = esc_attr($bestrating);
        }
        // Keywords - We use the keywords defined by Add-Meta-Tags
        $keywords = amt_get_content_keywords($post);
        if (!empty($keywords)) {
            $metadata_arr['keywords'] = esc_attr($keywords);
        }
        // Referenced Items
        $referenced_url_list = amt_get_referenced_items($post);
        if (!empty($referenced_url_list)) {
            $metadata_arr['referencedItem'] = array();
            foreach ($referenced_url_list as $referenced_url) {
                $referenced_url = trim($referenced_url);
                if (!empty($referenced_url)) {
                    $metadata_arr['referencedItem'][] = esc_url_raw($referenced_url);
                }
            }
        }
        // Images
        $metadata_arr['image'] = array();
        // First check if a global image override URL has been entered.
        // If yes, use this image URL and override all other images.
        $image_data = amt_get_image_data(amt_get_post_meta_image_url($post->ID));
        if (!empty($image_data)) {
            $image_size = apply_filters('amt_image_size_content', 'full');
            $image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
            if (!empty($image_meta_array)) {
                $metadata_arr['image'] = array();
                $metadata_arr['image'][] = $image_meta_array;
            }
            //$global_image_override_url = amt_get_post_meta_image_url($post->ID);
            //if ( ! empty( $global_image_override_url ) ) {
            //            $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
            //            $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
            //    $current_image_obj = array();
            //    $current_image_obj['@type'] = 'ImageObject';
            //    $current_image_obj['url'] = esc_url_raw( $global_image_override_url );
            //    $current_image_obj['contentUrl'] = esc_url_raw( $global_image_override_url );
            //    $metadata_arr['image'][] = $current_image_obj;
            //            $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $global_image_override_url ) . '" />';
            //            $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
            // Further image processing
        } else {
            // Media Limits
            $image_limit = amt_metadata_get_image_limit($options);
            $video_limit = amt_metadata_get_video_limit($options);
            $audio_limit = amt_metadata_get_audio_limit($options);
            // Counters
            $ic = 0;
            // image counter
            $vc = 0;
            // video counter
            $ac = 0;
            // audio counter
            // We store the featured image ID in this variable so that it can easily be excluded
            // when all images are parsed from the $attachments array.
            $featured_image_id = 0;
            // Set to true if any image attachments are found. Use to finally add the default image
            // if no image attachments have been found.
            $has_images = false;
            // Scope BEGIN: ImageObject: http://schema.org/ImageObject
            // Image - Featured image is checked first, so that it can be the first associated image.
            if (function_exists('has_post_thumbnail') && has_post_thumbnail($post->ID)) {
                // Thumbnail URL
                // First add the thumbnail URL of the featured image
                $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), 'thumbnail');
                $metadata_arr['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
                // Add full image object for featured image.
                // Get the image attachment object
                $image = get_post(get_post_thumbnail_id($post->ID));
                // metadata BEGIN
                //                $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
                //                $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
                // Allow filtering of the image size.
                $image_size = apply_filters('amt_image_size_content', 'full');
                // Get image metatags.
                //                $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_image_metatags( $options, $image, $size=$image_size ) );
                $metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array($options, $image, $size = $image_size);
                // metadata END
                //                $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
                // Finally, set the $featured_image_id
                $featured_image_id = get_post_thumbnail_id($post->ID);
                // Images have been found.
                $has_images = true;
                // Increase image counter
                $ic++;
            }
            // Scope END: ImageObject
            // Process all attachments and add metatags (featured image will be excluded)
            foreach ($attachments as $attachment) {
                // Excluded the featured image since
                if ($attachment->ID != $featured_image_id) {
                    $mime_type = get_post_mime_type($attachment->ID);
                    //$attachment_type = strstr( $mime_type, '/', true );
                    // See why we do not use strstr(): http://www.codetrax.org/issues/1091
                    $attachment_type = preg_replace('#\\/[^\\/]*$#', '', $mime_type);
                    if ('image' == $attachment_type && $ic < $image_limit) {
                        // metadata BEGIN
                        //                        $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
                        //                        $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
                        // Allow filtering of the image size.
                        $image_size = apply_filters('amt_image_size_content', 'full');
                        // Get image metatags.
                        //                        $metadata_arr = array_merge( $metadata_arr, amt_get_schemaorg_image_metatags( $options, $attachment, $size=$image_size ) );
                        $metadata_arr['image'][] = amt_get_jsonld_schemaorg_image_array($options, $attachment, $size = $image_size);
                        // metadata END
                        //                        $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
                        // Images have been found.
                        $has_images = true;
                        // Increase image counter
                        $ic++;
                    } elseif ('video' == $attachment_type && $vc < $video_limit) {
                        // Scope BEGIN: VideoObject: http://schema.org/VideoObject
                        //                        $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->';
                        //                        $metadata_arr[] = '<span itemprop="video" itemscope itemtype="http://schema.org/VideoObject">';
                        // Video specific metatags
                        // URL (for attachments: links to attachment page)
                        $current_video_obj = array();
                        $current_video_obj['@type'] = 'VideoObject';
                        // URL (links to image file)
                        //$current_video_obj['url'] = esc_url_raw( get_permalink( $attachment->ID ) );
                        $current_video_obj['url'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
                        // sameAs (links to attachment page)
                        $current_video_obj['sameAs'] = esc_url_raw(get_permalink($attachment->ID));
                        $current_video_obj['contentUrl'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
                        $current_video_obj['encodingFormat'] = esc_attr($mime_type);
                        // name
                        $current_video_obj['name'] = esc_attr(strip_tags(get_the_title($attachment->ID)));
                        // Description - We use the description defined by Add-Meta-Tags
                        $content_desc = amt_get_content_description($attachment);
                        if (!empty($content_desc)) {
                            $current_video_obj['description'] = esc_attr($content_desc);
                        }
                        // Thumbnail
                        // A featured image is supported by video and audio attachments.
                        // If one is set, then it is set as the thumbnail of the video/audio object.
                        if (function_exists('has_post_thumbnail') && has_post_thumbnail($attachment->ID)) {
                            // Thumbnail URL of the featured image
                            $image_size = apply_filters('amt_image_size_content', 'full');
                            $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($attachment->ID), $image_size);
                            $current_video_obj['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
                            // Currently we do not add a full ImageObject for the attachment's featured image.
                            // TODO: future
                        }
                        // uploadDate
                        $current_video_obj['uploadDate'] = esc_attr(amt_iso8601_date($attachment->post_date));
                        $metadata_arr['video'][] = $current_video_obj;
                        // Scope END: VideoObject
                        //                        $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->';
                        // Increase video counter
                        $vc++;
                    } elseif ('audio' == $attachment_type && $ac < $audio_limit) {
                        // Scope BEGIN: AudioObject: http://schema.org/AudioObject
                        //                        $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->';
                        //                        $metadata_arr[] = '<span itemprop="audio" itemscope itemtype="http://schema.org/AudioObject">';
                        // Audio specific metatags
                        // URL (for attachments: links to attachment page)
                        $current_audio_obj = array();
                        $current_audio_obj['@type'] = 'AudioObject';
                        // URL (links to image file)
                        //$current_audio_obj['url'] = esc_url_raw( get_permalink( $attachment->ID ) );
                        $current_audio_obj['url'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
                        // sameAs (links to attachment page)
                        $current_audio_obj['sameAs'] = esc_url_raw(get_permalink($attachment->ID));
                        $current_audio_obj['contentUrl'] = esc_url_raw(wp_get_attachment_url($attachment->ID));
                        $current_audio_obj['encodingFormat'] = esc_attr($mime_type);
                        // name
                        $current_audio_obj['name'] = esc_attr(strip_tags(get_the_title($attachment->ID)));
                        // Description - We use the description defined by Add-Meta-Tags
                        $content_desc = amt_get_content_description($attachment);
                        if (!empty($content_desc)) {
                            $current_audio_obj['description'] = esc_attr($content_desc);
                        }
                        // Thumbnail
                        // A featured image is supported by video and audio attachments.
                        // If one is set, then it is set as the thumbnail of the video/audio object.
                        if (function_exists('has_post_thumbnail') && has_post_thumbnail($attachment->ID)) {
                            // Thumbnail URL of the featured image
                            $image_size = apply_filters('amt_image_size_content', 'full');
                            $thumbnail_info = wp_get_attachment_image_src(get_post_thumbnail_id($attachment->ID), $image_size);
                            $current_audio_obj['thumbnailUrl'] = esc_url_raw($thumbnail_info[0]);
                            // Currently we do not add a full ImageObject for the attachment's featured image.
                            // TODO: future
                        }
                        // uploadDate
                        $current_audio_obj['uploadDate'] = esc_attr(amt_iso8601_date($attachment->post_date));
                        $metadata_arr['audio'][] = $current_audio_obj;
                        // Scope END: AudioObject
                        //                        $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->';
                        // Increase audio counter
                        $ac++;
                    }
                }
            }
            // Embedded Media
            foreach ($embedded_media['images'] as $embedded_item) {
                if ($ic == $image_limit) {
                    break;
                }
                // Scope BEGIN: ImageObject: http://schema.org/ImageObject
                //                $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
                //                $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
                $current_image_obj = array();
                $current_image_obj['@type'] = 'ImageObject';
                // name (title)
                $current_image_obj['name'] = esc_attr($embedded_item['alt']);
                // caption
                $current_image_obj['caption'] = esc_attr($embedded_item['alt']);
                // alt
                $current_image_obj['text'] = esc_attr($embedded_item['alt']);
                // URL (links to image file)
                //$current_image_obj['url'] = esc_url_raw( $embedded_item['page'] );
                $current_image_obj['url'] = esc_url_raw($embedded_item['image']);
                // sameAs (links to attachment page)
                $current_image_obj['sameAs'] = esc_url_raw($embedded_item['page']);
                // thumbnail url
                $current_image_obj['thumbnailUrl'] = esc_url_raw($embedded_item['thumbnail']);
                // main image
                $current_image_obj['contentUrl'] = esc_url_raw($embedded_item['image']);
                if (apply_filters('amt_extended_image_tags', true)) {
                    $current_image_obj['width'] = esc_attr($embedded_item['width']);
                    $current_image_obj['height'] = esc_attr($embedded_item['height']);
                    $current_image_obj['encodingFormat'] = 'image/jpeg';
                }
                // embedURL
                $current_image_obj['embedURL'] = esc_url_raw($embedded_item['player']);
                $metadata_arr['image'][] = $current_image_obj;
                // Scope END: ImageObject
                //                $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
                // Images have been found.
                $has_images = true;
                // Increase image counter
                $ic++;
            }
            foreach ($embedded_media['videos'] as $embedded_item) {
                if ($vc == $video_limit) {
                    break;
                }
                // Scope BEGIN: VideoObject: http://schema.org/VideoObject
                // See: http://googlewebmastercentral.blogspot.gr/2012/02/using-schemaorg-markup-for-videos.html
                // See: https://support.google.com/webmasters/answer/2413309?hl=en
                //                $metadata_arr[] = '<!-- Scope BEGIN: VideoObject -->';
                //                $metadata_arr[] = '<span itemprop="video" itemscope itemtype="http://schema.org/VideoObject">';
                $current_video_obj = array();
                // Video Embed URL
                $current_video_obj['embedURL'] = esc_url_raw($embedded_item['player']);
                // playerType
                $current_video_obj['playerType'] = 'application/x-shockwave-flash';
                // size
                $current_video_obj['width'] = esc_attr($embedded_item['width']);
                $current_video_obj['height'] = esc_attr($embedded_item['height']);
                $metadata_arr['video'][] = $current_video_obj;
                // Scope END: VideoObject
                //                $metadata_arr[] = '</span> <!-- Scope END: VideoObject -->';
                // Increase video counter
                $vc++;
            }
            foreach ($embedded_media['sounds'] as $embedded_item) {
                if ($ac == $audio_limit) {
                    break;
                }
                // Scope BEGIN: AudioObject: http://schema.org/AudioObject
                //                $metadata_arr[] = '<!-- Scope BEGIN: AudioObject -->';
                //                $metadata_arr[] = '<span itemprop="audio" itemscope itemtype="http://schema.org/AudioObject">';
                $current_audio_obj = array();
                // Audio Embed URL
                $current_audio_obj['embedURL'] = esc_url_raw($embedded_item['player']);
                // playerType
                $current_audio_obj['playerType'] = 'application/x-shockwave-flash';
                $metadata_arr['audio'][] = $current_audio_obj;
                // Scope END: AudioObject
                //                $metadata_arr[] = '</span> <!-- Scope END: AudioObject -->';
                // Increase audio counter
                $ac++;
            }
            // If no images have been found so far use the default image, if set.
            // Scope BEGIN: ImageObject: http://schema.org/ImageObject
            if ($has_images === false) {
                $image_data = amt_get_default_image_data();
                if (!empty($image_data)) {
                    $image_size = apply_filters('amt_image_size_content', 'full');
                    $image_meta_array = amt_get_jsonld_schemaorg_image_array($options, $image_data, $size = $image_size);
                    if (!empty($image_meta_array)) {
                        $metadata_arr['image'] = array();
                        $metadata_arr['image'][] = $image_meta_array;
                    }
                }
                //                $metadata_arr[] = '<!-- Scope BEGIN: ImageObject -->';
                //                $metadata_arr[] = '<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject">';
                $current_image_obj = array();
                $current_image_obj['@type'] = 'ImageObject';
                $current_image_obj['url'] = esc_url_raw($options["default_image_url"]);
                $current_image_obj['contentUrl'] = esc_url_raw($options["default_image_url"]);
                $metadata_arr['image'][] = $current_image_obj;
                //                $metadata_arr[] = '<meta itemprop="contentUrl" content="' . esc_url_raw( $options["default_image_url"] ) . '" />';
                //                $metadata_arr[] = '</span> <!-- Scope END: ImageObject -->';
            }
            // Scope END: ImageObject
        }
        // Article Body
        // The article body is added after filtering the generated microdata below.
        // TODO: also check: comments, contributor, copyrightHolder, , creator, dateCreated, discussionUrl, editor, version (use post revision if possible)
        // Scope END: Article
        //        $metadata_arr[] = '</div> <!-- Scope END: ' . esc_attr($main_content_object) . ' -->';
        // Filtering of the generated Schema.org metadata
        $metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_content', $metadata_arr);
        // Add articleBody to Artice
        // Now add the article. Remove last closing '</span>' tag, add articleBody and re-add the closing span afterwards.
        //        $closing_article_tag = array_pop($metadata_arr);
        // Use the 'text' itemprop by default for the main text body of the CreativeWork,
        // so it can be used by more subtypes than Article.
        // But set it explicitly to 'articleBody if the main entiry is 'Article'
        // or 'reviewBody' if the main entity is a 'Review'.
        $main_text_property = 'text';
        if ($main_content_object == 'Article') {
            $main_text_property = 'articleBody';
        } elseif ($main_content_object == 'Review') {
            $main_text_property = 'reviewBody';
        }
        // Allow filtering of the main text property.
        $main_text_property = apply_filters('amt_schemaorg_property_main_text', $main_text_property);
        //        $metadata_arr[] = '<div itemprop="' . esc_attr($main_text_property) . '">';
        // Add main content
        //$metadata_arr[ esc_attr($main_text_property) ] = $post->post_content;
        //        $metadata_arr[] = $post_body;
        //        $metadata_arr[] = '</div> <!-- Itemprop END: ' . esc_attr($main_text_property) . ' -->';
        // Now add closing tag for Article
        //        $metadata_arr[] = $closing_article_tag;
    }
    // Add our comment
    //    if ( count( $metadata_arr ) > 0 ) {
    //        array_unshift( $metadata_arr, "<!-- BEGIN Schema.org microdata added by Add-Meta-Tags WordPress plugin -->" );
    //        array_unshift( $metadata_arr, "" );   // Intentionaly left empty
    //        array_push( $metadata_arr, "<!-- END Schema.org microdata added by Add-Meta-Tags WordPress plugin -->" );
    //        array_push( $metadata_arr, "" );   // Intentionaly left empty
    //    }
    //return $post_body;
    //    return implode( PHP_EOL, $metadata_arr );
    // Filtering of the generated microdata for footer
    $metadata_arr = apply_filters('amt_jsonld_schemaorg_metadata_head', $metadata_arr);
    //    if ( count( $metadata_arr ) > 0 ) {
    //        array_unshift( $metadata_arr, '<script type="application/ld+json">' );
    //        array_unshift( $metadata_arr, "" );   // Intentionaly left empty
    //        array_push( $metadata_arr, '</script>' );
    //        array_push( $metadata_arr, "" );   // Intentionaly left empty
    //    }
    //    return $metadata_arr;
    if (count($metadata_arr) > 1) {
        // contains @context by default
        return array('<script type="application/ld+json">', 'json+ld_data' => json_encode($metadata_arr), '</script>');
    } else {
        return array();
    }
}
Exemplo n.º 2
0
function amt_get_schemaorg_entity_id_as_itemid($object_type)
{
    return sprintf(' itemid="%s"', amt_get_schemaorg_entity_id($object_type));
}