: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace WPForms\Admin\Education\Builder;
use \WPForms\Admin\Education\AddonsListBase;
* Base class for Builder/Settings, Builder/Providers, Builder/Payments Education features.
abstract class Panel extends AddonsListBase {
* Panel slug. Should be redefined in the real Builder/Panel class.
abstract protected function get_name();
* Indicate if current Education feature is allowed to load.
public function allow_load() {
// Load only in the Form Builder.
return wpforms_is_admin_page( 'builder' ) && ! empty( $this->get_name() );
* Get addons for the current panel.
protected function get_addons() {
return $this->addons->get_by_category( $this->get_name() );
* Template name for rendering single addon item.
protected function get_single_addon_template() {
return 'education/builder/' . $this->get_name() . '-item';
public function display_addons() {
$this->single_addon_template = $this->get_single_addon_template();
parent::display_addons();