Title: Errore php Last modified: April 1, 2026 --- # Errore php * [appteam](https://wordpress.org/support/users/appteam/) * (@appteam) * [2 months, 1 week ago](https://wordpress.org/support/topic/errore-php/) * [01-Apr-2026 09:11:34 UTC] PHP 16. WooCommerce_Italian_add_on_plus->piva_checkout_field_process(”)/ home/_**/public\_html/wp-includes/class-wp-hook.php:341 [01-Apr-2026 09:11:34 UTC] PHP 15. WP\_Hook->apply\_filters($value = ”, $args = [0 => ”]) /home/**_/ public_html/wp-includes/class-wp-hook.php:365 [01-Apr-2026 09:11:34 UTC] PHP 14. WP_Hook->do_action($args = [0 => ”]) /home/_**/public\_html/wp-includes/plugin. php:522 [01-Apr-2026 09:11:34 UTC] PHP 13. do\_action($hook\_name = ‘woocommerce\ _checkout\_process’) /home/**_/public_html/wp-content/plugins/woocommerce/includes/ class-wc-checkout.php:1303[01-Apr-2026 09:11:34 UTC] PHP 12. WC_Checkout->process_checkout()/ home/_**/public\_html/wp-content/plugins/woocommerce/includes/class-wc-ajax.php: 596 [01-Apr-2026 09:11:34 UTC] PHP 11. WC\_AJAX::checkout(”) /home/**_/public_html/ wp-includes/class-wp-hook.php:341[01-Apr-2026 09:11:34 UTC] PHP 10. WP_Hook-> apply_filters($value = ”, $args = [0 => ”]) /home/_**/public\_html/wp-includes/ class-wp-hook.php:365 [01-Apr-2026 09:11:34 UTC] PHP 9. WP\_Hook->do\_action( $args = [0 => ”]) /home/**_/public_html/wp-includes/plugin.php:522[01-Apr-2026 09:11:34 UTC] PHP 8. do_action($hook_name = ‘wc_ajax_checkout’) /home/_**/public\ _html/wp-content/plugins/woocommerce/includes/class-wc-ajax.php:127 [01-Apr-2026 09:11:34 UTC] PHP 7. WC\_AJAX::do\_wc\_ajax(”) /home/**_/public_html/wp-includes/ class-wp-hook.php:341[01-Apr-2026 09:11:34 UTC] PHP 6. WP_Hook->apply_filters( $value = ”, $args = [0 => ”]) /home/_**/public\_html/wp-includes/class-wp-hook. php:365 [01-Apr-2026 09:11:34 UTC] PHP 5. WP\_Hook->do\_action($args = [0 => ”])/ home/**_/public_html/wp-includes/plugin.php:522[01-Apr-2026 09:11:34 UTC] PHP 4. do_action($hook_name = ‘template_redirect’) /home/_**/public\_html/wp-includes/ template-loader.php:23 [01-Apr-2026 09:11:34 UTC] PHP 3. require\_once() /home/**_/ public_html/wp-blog-header.php:19[01-Apr-2026 09:11:34 UTC] PHP 2. require() / home/_**/public\_html/index.php:17 [01-Apr-2026 09:11:34 UTC] PHP 1. {main}()/ home/**_/public_html/index.php:0[01-Apr-2026 09:11:34 UTC] PHP Stack trace:[01- Apr-2026 09:11:34 UTC] PHP Warning: Undefined array key “base_country” in /home/*/ public_html/wp-content/plugins/woocommerce-italian-add-on/woocommerce-italian- add-on.php on line 856 Viewing 1 replies (of 1 total) * Thread Starter [appteam](https://wordpress.org/support/users/appteam/) * (@appteam) * [2 months, 1 week ago](https://wordpress.org/support/topic/errore-php/#post-18868943) * Correzioni applicate a “WooCommerce Italian Add-on Plus” (per passaggio allo sviluppatore) * Obiettivo - Eliminare il fatal in export XML: “Cannot access offset of type string on string” (accesso a $document_data[“fn”]) - Eliminare warning in checkout: “Undefined array key “base_country”” (in realtà manca billing/shipping country in $_POST) * 1) Fix fatal export XML (document_data coerente) File: - wp-content/plugins/woocommerce-italian-add-on/includes/class-wc-settings-export. php * 1A. Validazione meta _wcpdf_IT_document_data Motivo: - $order->get_meta(‘_wcpdf_IT_document_data’, true) può ritornare una stringa/ bool; il codice lo trattava come array. * Modifica (nel ramo “else”, vicino alla lettura del meta): PRIMA:$document_data = $order->get_meta( ‘_wcpdf_IT_document_data’, true );if ( $document_data ) { $number_formatted = $document_data[“number_formatted”];$number = $document_data[“ number”];$date = $document_data[“date”];…} * DOPO: $document_data = $order->get_meta( ‘_wcpdf_IT_document_data’, true );if( is_array( $document_data ) && $document_data ) {$number_formatted = empty( $document_data[“ number_formatted”] ) ? “” : $document_data[“number_formatted”];$number = empty( $document_data[“number”] ) ? “” : $document_data[“number”];$date = empty( $document_data[“ date”] ) ? “” : $document_data[“date”];…} * 1B. get_document_data() restituisce sempre un array Motivo: - get_document_data() ritornava “” quando non trovava dati; crea_xml() poi faceva $document_data[“fn”] causando fatal. * Modifica (a fine get_document_data()): PRIMA:$res = “”;if ( $number_formatted){ $date_formatted = empty( $date ) ? “” : date( “Y-m-d”, strtotime( $date ) );$ res = array( “num” => $number_formatted, “data” => $date_formatted, “fn” => $ fname, “type” => $document_type );}return $res; * DOPO: $res = array( “num” => “”, “data” => “”, “fn” => $fname, “type” => $document_type); if ( $number_formatted ) {$date_formatted = empty( $date ) ? “” : date( “Y-m- d”, strtotime( $date ) );$res[“num”] = $number_formatted;$res[“data”] = $date_formatted;} return $res; * Impatto: - crea_xml() può sempre fare $document_data[“fn”] senza rischiare accesso a offset su stringa. * 2) Fix warning “base_country” in checkout (fallback country in $_POST) File: - wp-content/plugins/woocommerce-italian-add-on/woocommerce-italian-add-on.php * Punto: - Funzione piva_checkout_field_process() * Motivo: - $_POST[$tax_based_on_country] (billing_country o shipping_country) può non arrivare in alcuni flussi; il codice lo usa senza check. * Modifica (subito dopo la definizione di $tax_based_on_country): AGGIUNTA:$tax_based_on_country = $tax_based_on . “_country”;if ( empty( $_POST[ $tax_based_on_country ] ) ) { $_POST[ $tax_based_on_country ] = $this->default_country;} * Impatto: - Evita accessi a chiavi inesistenti in $_POST e quindi elimina i warning relativi. * - This reply was modified 2 months, 1 week ago by [appteam](https://wordpress.org/support/users/appteam/). Viewing 1 replies (of 1 total) You must be [logged in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferrore-php%2F%3Foutput_format%3Dmd&locale=en_US) to reply to this topic. * ![](https://ps.w.org/woocommerce-pdf-invoices-italian-add-on/assets/icon-256x256. jpg?rev=1058945) * [PDF Invoices Italian Add-on for WooCommerce](https://wordpress.org/plugins/woocommerce-pdf-invoices-italian-add-on/) * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-pdf-invoices-italian-add-on/#faq) * [Support Threads](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-italian-add-on/) * [Active Topics](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-italian-add-on/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-italian-add-on/unresolved/) * [Reviews](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-italian-add-on/reviews/) * 1 reply * 1 participant * Last reply from: [appteam](https://wordpress.org/support/users/appteam/) * Last activity: [2 months, 1 week ago](https://wordpress.org/support/topic/errore-php/#post-18868943) * Status: not resolved