# wpsso/22.7.0/lib/opengraph-ns.php WPSSO Core – Complete Schema Markup and Meta Tags, version 22.7.0. 239 lines. - Page: https://pluginprobe.com/plugins/wpsso/22.7.0/code/lib/opengraph-ns.php - Raw: https://pluginprobe.com/plugins/wpsso/22.7.0/raw/lib/opengraph-ns.php - Modified: 2026-03-25T12:08:02+00:00 Line numbers below start at 1. Link to a line or a range by appending a fragment to the page URL, for example `https://pluginprobe.com/plugins/wpsso/22.7.0/code/lib/opengraph-ns.php#L10-L20`. ```php p =& $plugin; if ( $this->p->debug->enabled ) { $this->p->debug->mark(); } $this->add_html_attributes_filter(); $this->p->util->add_plugin_filters( $this, array( 'og_data_https_ogp_me_ns_article' => 2, 'og_data_https_ogp_me_ns_book' => 2, 'og_data_https_ogp_me_ns_product' => 2, ) ); } private function add_html_attributes_filter() { $filter_name = SucomUtil::get_const( 'WPSSO_HTML_ATTR_FILTER_NAME', 'language_attributes' ); $filter_prio = SucomUtil::get_const( 'WPSSO_HTML_ATTR_FILTER_PRIO', 1000 ); if ( empty( $filter_name ) || 'none' === $filter_name ) { if ( $this->p->debug->enabled ) { $this->p->debug->log( 'skipped filter_html_attributes - filter name is empty or disabled' ); } } else { add_filter( $filter_name, array( $this, 'filter_html_attributes' ), $filter_prio, 1 ); if ( $this->p->debug->enabled ) { $this->p->debug->log( 'added filter_html_attributes filter for ' . $filter_name ); } } } public function filter_html_attributes( $html_attr ) { if ( $this->p->debug->enabled ) { $this->p->debug->log_args( array ( 'html_attr' => $html_attr, ) ); } if ( $this->p->debug->enabled ) { $this->p->debug->log( 'required call to WpssoPage->get_mod()' ); } $use_post = apply_filters( 'wpsso_use_post', false ); $mod = $this->p->page->get_mod( $use_post ); $type_id = $this->p->og->get_mod_og_type_id( $mod ); $og_ns = array( 'og' => 'https://ogp.me/ns#', 'fb' => 'https://ogp.me/ns/fb#', ); /* * Check that the og_type is known and add it's namespace value. * * Example: article, place, product, website, etc. */ if ( ! empty( $this->p->cf[ 'head' ][ 'og_type_ns' ][ $type_id ] ) ) { $og_ns[ $type_id ] = $this->p->cf[ 'head' ][ 'og_type_ns' ][ $type_id ]; } $og_ns = apply_filters( 'wpsso_og_ns', $og_ns, $mod ); if ( SucomUtilWP::is_amp() ) { // Returns null, true, or false. /* * Nothing to do. */ } else { $html_attr = ' ' . $html_attr; // Prepare the string for testing. /* * Find and remove an existing prefix attribute value. */ if ( strpos( $html_attr, 'prefix=' ) ) { /* * s = A dot metacharacter in the pattern matches all characters, including newlines. * * See https://www.php.net/manual/en/reference.pcre.pattern.modifiers.php */ if ( preg_match( '/^(.*)\sprefix=["\']([^"\']*)["\'](.*)$/s', $html_attr, $match ) ) { $html_attr = $match[1] . $match[3]; // Remove the prefix. } } $attr_val = ''; foreach ( $og_ns as $name => $url ) { if ( false === strpos( $attr_val, ' ' . $name . ': ' . $url ) ) { $attr_val .= ' ' . $name . ': ' . $url; } } $html_attr .= ' prefix="' . trim( $attr_val ) . '"'; } return trim( $html_attr ); } /* * The output from this method is provided to the JSON data filters, so be careful when removing any array * elements. If you need to remove array elements after the Schema JSON-LD markup has been created, but before the * meta tags have been generated, use the WpssoOpenGraph->sanitize_mt_array() method. */ public function filter_og_data_https_ogp_me_ns_article( array $mt_og, array $mod ) { if ( $this->p->debug->enabled ) { $this->p->debug->mark(); } return $mt_og; } /* * The output from this method is provided to the JSON data filters, so be careful when removing any array * elements. If you need to remove array elements after the Schema JSON-LD markup has been created, but before the * meta tags have been generated, use the WpssoOpenGraph->sanitize_mt_array() method. */ public function filter_og_data_https_ogp_me_ns_book( array $mt_og, array $mod ) { if ( $this->p->debug->enabled ) { $this->p->debug->mark(); } return $mt_og; } /* * The output from this method is provided to the JSON data filters, so be careful when removing any array * elements. If you need to remove array elements after the Schema JSON-LD markup has been created, but before the * meta tags have been generated, use the WpssoOpenGraph->sanitize_mt_array() method. */ public function filter_og_data_https_ogp_me_ns_product( array $mt_og, array $mod ) { if ( $this->p->debug->enabled ) { $this->p->debug->mark(); } $mt_og[ 'product:retailer_item_id' ] = $mod[ 'id' ]; $mt_og[ 'product:retailer_category' ] = $this->p->og->get_product_retailer_category( $mod ); $mt_og[ 'product:awards' ] = $this->p->og->get_product_awards( $mod ); /* * Maybe fix an empty product description. */ if ( empty( $mt_og[ 'product:description' ] ) ) { if ( ! empty( $mt_og[ 'og:description' ] ) ) { $mt_og[ 'product:description' ] = $mt_og[ 'og:description' ]; } } WpssoOpenGraph::check_mt_value_gtin( $mt_og, $mt_pre = 'product' ); WpssoOpenGraph::check_mt_value_price( $mt_og, $mt_pre = 'product' ); WpssoOpenGraph::check_mt_value_energy_efficiency( $mt_og, $mt_pre = 'product' ); /* * Check product offers and variants. */ foreach ( array( 'product:offers', 'product:variants' ) as $mt_name ) { if ( ! empty( $mt_og[ $mt_name ] ) && is_array( $mt_og[ $mt_name ] ) ) { foreach ( $mt_og[ $mt_name ] as $num => &$mt_single ) { // Allow changes to the variation array. $mt_single[ 'product:item_group_id' ] = $mod[ 'id' ]; /* * Maybe fix an empty variation descriptions. */ if ( empty( $mt_single[ 'product:description' ] ) ) { if ( ! empty( $mt_og[ 'product:description' ] ) ) { $mt_single[ 'product:description' ] = $mt_og[ 'product:description' ]; } } WpssoOpenGraph::check_mt_value_gtin( $mt_single, $mt_pre = 'product' ); WpssoOpenGraph::check_mt_value_price( $mt_single, $mt_pre = 'product' ); WpssoOpenGraph::check_mt_value_energy_efficiency( $mt_single, $mt_pre = 'product' ); } } } return $mt_og; } } } ```