Checkout custom fields are not saved

hello, I have created custom checkout fields that are repeated based on the quantity. the changes are seen on the page but the value is not seen in the email and on the order page. I didn’t find them in the database so I think it’s not saving them, I tried disabling the plugins but no difference, with active debugging there are no errors. I don’t understand what I’m doing wrong, this is the code:

/* nuovo test custom field*/
add_action( 'woocommerce_before_order_notes', 'persons_details' );
function persons_details( $checkout ) {
    $count = WC()->cart->get_cart_contents_count();
    $i = 0;

    for( $k=1; $k<= $count; $k++ ) {
        $i++;
        echo '<div><strong>'. __('Dati iscritto n. ') . $i . '</strong></div>';
        
        woocommerce_form_field( 'cstm_full_name' . $i, array(
            'type'          => 'text',
            'class'         => array('my-field-class form-row-first'),
            'label'         => __("Nome e cognome"),
            'placeholder'   => __(""),
            'required'      => true,
        ), $checkout->get_value( 'cstm_full_name' . $i ));
        
        woocommerce_form_field( 'cstm_email' . $i, array(
            'type'          => 'email',
            'class'         => array( 'my-field-class form-row-last' ),
            'label'         => __( "Email" ),
            'placeholder'   => __(""),
            'required'      => true,
        ), $checkout->get_value( 'cstm_email' . $i ));
        
        woocommerce_form_field( 'cstm_phone' . $i, array(
            'type'          => 'text',
            'class'         => array('my-field-class form-row-first'),
            'label'         => __("Numero di telefono"),
            'placeholder'   => __(""),
            'required'      => true,
        ), $checkout->get_value( 'cstm_phone' . $i ));
        
        woocommerce_form_field( 'cstm_address' . $i, array(
            'type'          => 'textarea',
            'class'         => array('my-field-class form-row-last'),
            'label'         => __("Indirizzo di residenza"),
            'placeholder'   => __(""),
            'required'      => true,
        ), $checkout->get_value( 'cstm_address' . $i ));
        
        echo '<div class="clear"></div>
        <div class="clearbox"></div>';
    }
}


add_action( 'woocommerce_checkout_create_order', 'save_custom_checkout_field_order_meta' );
function save_custom_checkout_field_order_meta( $order )
{
    $count = WC()->cart->get_cart_contents_count();
    $order->update_meta_data( 'cstm_items_count', intval($count) ); // Save the cart contents count as meta data
    
    $i = 0;
    for($k=1; $k<= $count; $k++) {
        $i++;
        if ( isset($_POST['cstm_full_name'.$i]) && ! empty($_POST['cstm_full_name'.$i]) ) {
            $order->update_meta_data( 'cstm_full_name'.$i, sanitize_text_field($_POST['cstm_full_name'.$i]) );
        }
        if ( isset($_POST['cstm_email'.$i]) && ! empty($_POST['cstm_email'.$i]) ) {
            $order->update_meta_data( 'cstm_email'.$i, sanitize_text_field($_POST['cstm_email'.$i]) );
        }
        if ( isset($_POST['cstm_phone'.$i]) && ! empty($_POST['cstm_phone'.$i])) {
            $order->update_meta_data( 'cstm_phone'.$i, sanitize_text_field($_POST['cstm_phone'.$i]) );
        }
        if ( isset($_POST['cstm_address'.$i]) && ! empty($_POST['cstm_address'.$i])) {
            $order->update_meta_data( 'cstm_address'.$i, sanitize_text_field($_POST['cstm_address'.$i]) );
        }
    }
}

add_action( 'woocommerce_email_order_meta', 'add_email_custom_order_meta', 10, 3 );
function add_email_custom_order_meta( $order, $sent_to_admin, $plain_text ){
    $quantity = $order->get_meta('cstm_items_count'); // Get items quantity count from meta data
    
    echo '<ul>';
    $i = 0;
    for( $k=1; $k <= $quantity; $k++ ) {
        $i++;
        echo '<li><strong>'. __("Dati iscritto n. ") . $i . '<strong></li>
        <li>' . __("Nome e cognome: ") . $order->get_meta('cstm_full_name'.$i) . '</li>
        <li>' . __("Email: ") . $order->get_meta('cstm_email'.$i) . '</li>
        <li>' . __("Numero di telefono: ") . $order->get_meta('cstm_phone'.$i) . '</li>
        <li>' . __("Indirizzo di residenza: ") . $order->get_meta('cstm_address'.$i) . '</li>';
    }
    echo '</ul>';
}

add_action( 'woocommerce_admin_order_data_after_order_details', 'display_custom_fields_in_admin_order_pages' );
function display_custom_fields_in_admin_order_pages( $order ){ 
    $quantity = $order->get_meta('cstm_items_count'); // Get items quantity count from meta data  
    
    echo '<div class="order_data_column" style="width: 100% !important;">
        <h4>' . __( 'Your label' ) . '</h4>
        <ul>';
        $i = 0;
        for( $k=1; $k <= $quantity; $k++ ) {
            $i++;
            echo '<li><strong>'. __("Dati iscritto n. ") . $i . '<strong></li>
            <li>' . __("Nome e cognome: ") . $order->get_meta('cstm_full_name'.$i) . '</li>
            <li>' . __("Email: ") . $order->get_meta('cstm_email'.$i) . '</li>
            <li>' . __("Numero di telefono: ") . $order->get_meta('cstm_phone'.$i) . '</li>
            <li>' . __("Indirizzo di residenza: ") .$order->get_meta('cstm_address'.$i) . '</li>';
        }
        echo '</ul>
    </div>';
}
phpwordpresswoocommerceguardareCampi personalizzati
Condividere
Modificare
Eliminare
Bandiera
modificato il 16 giugno alle 8:41
ha chiesto l'8 giugno alle 5:51
L'avatar dell'utente di LesCa
Les Ca
2144 distintivi in ??bronzo
@LoicTheAztec hai chiuso la domanda ma ho provato anche le vecchie domande ma non riesco a capire dove sbaglio, continuo a non vedere il valore dei campi nelle email e nella pagina di amministrazione dell'ordine. Vorrei che tu potessi anche modificare i campi dalla pagina di amministrazione dell'ordine in caso di errori 
– 
Les Ca
 8 giugno alle 14:39   Eliminare