: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace WPForms\Admin\Education\Builder;
use WPForms\Admin\Education\AddonsItemBase;
use WPForms\Admin\Education\Helpers;
* Builder/Calculations Education feature for Lite and Pro.
class Calculations extends AddonsItemBase {
* Support calculations in these field types.
const ALLOWED_FIELD_TYPES = [ 'text', 'textarea', 'number', 'hidden', 'payment-single' ];
* Field types that should display educational notice in the basic field options tab.
const BASIC_OPTIONS_NOTICE_FIELD_TYPES = [ 'number', 'payment-single' ];
* Indicate if current Education feature is allowed to load.
public function allow_load() {
return wpforms_is_admin_page( 'builder' ) || wpforms_is_admin_ajax();
public function hooks() {
add_action( 'wpforms_field_options_bottom_basic-options', [ $this, 'basic_options' ], 20, 2 );
add_action( 'wpforms_field_options_bottom_advanced-options', [ $this, 'advanced_options' ], 20, 2 );
* Display notice on basic options.
* @param array $field Field data.
* @param object $instance Builder instance.
* @noinspection HtmlUnknownTarget
* @noinspection PhpUnusedParameterInspection
public function basic_options( $field, $instance ) {
// Display notice in basic options only in numbers and payment-single fields.
if ( ! in_array( $field['type'], self::BASIC_OPTIONS_NOTICE_FIELD_TYPES, true ) ) {
$dismissed = get_user_meta( get_current_user_id(), 'wpforms_dismissed', true );
$form_id = $instance->form_id ?? 0;
$dismiss_section = "builder-form-$form_id-field-options-calculations-notice";
// Check whether it is dismissed.
if ( ! empty( $dismissed[ 'edu-' . $dismiss_section ] ) ) {
// Display notice only if Calculations addon is released (available in `addons.json` file).
$addon = $this->addons->get_addon( 'calculations' );
wp_kses( /* translators: %1$s - link to the WPForms.com doc article. */
__( 'Easily perform calculations based on user input. Head over to the <a href="#advanced-tab">Advanced Tab</a> to get started or read <a href="%1$s" target="_blank" rel="noopener noreferrer">our documentation</a> to learn more.', 'wpforms-lite' ),
esc_url( wpforms_utm_link( 'https://wpforms.com/docs/calculations-addon/', 'Calculations Education', 'Calculations Documentation' ) )
'<div class="wpforms-alert-info wpforms-alert wpforms-educational-alert wpforms-calculations wpforms-dismiss-container">
<button type="button" class="wpforms-dismiss-button" title="%1$s" data-section="%2$s"></button>
<span class="wpforms-educational-badge wpforms-educational-badge-green">%3$s</span>
esc_html__( 'Dismiss this notice.', 'wpforms-lite' ),
esc_attr( $dismiss_section ),
esc_html__( 'New feature', 'wpforms-lite' ),
esc_html__( 'Calculations Are Here!', 'wpforms-lite' ),
$notice // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
* Display advanced options.
* @param array $field Field data.
* @param object $instance Builder instance.
public function advanced_options( $field, $instance ) {
if ( ! in_array( $field['type'], self::ALLOWED_FIELD_TYPES, true ) ) {
$addon = $this->addons->get_addon( 'calculations' );
if ( ! $this->is_edu_required_by_status( $addon ) ) {
$row_args = $this->get_row_attributes( $addon );
$row_args['content'] = $instance->field_element(
$this->get_field_attributes( $field, $addon ),
$instance->field_element( 'row', $field, $row_args );
* @param array $addon Addon data.
private function get_row_attributes( $addon ) {
'slug' => 'calculation_is_enabled',
if ( $addon['plugin_allow'] && $addon['action'] === 'install' ) {
'name' => $addon['modal_name'],
'nonce' => wp_create_nonce( 'wpforms-admin' ),
'license' => $addon['license_level'],
'class' => 'education-modal',
if ( $addon['plugin_allow'] && $addon['action'] === 'activate' ) {
'name' => sprintf( /* translators: %s - addon name. */
esc_html__( '%s addon', 'wpforms-lite' ),
'path' => $addon['path'],
'nonce' => wp_create_nonce( 'wpforms-admin' ),
'class' => 'education-modal',
'name' => esc_html__( 'Calculations', 'wpforms-lite' ),
'utm-content' => 'Enable Calculations',
'license' => $addon['license_level'],
'class' => 'education-modal',
* Get attributes for address autocomplete field.
* @param array $field Field data.
* @param array $addon Addon data.
* @noinspection PhpUnusedParameterInspection
private function get_field_attributes( $field, $addon ) {
'slug' => 'calculation_is_enabled',
'desc' => esc_html__( 'Enable Calculation', 'wpforms-lite' ),
if ( $addon['plugin_allow'] ) {
esc_html__( 'Enable Calculation', 'wpforms-lite' ),
Helpers::get_badge( $addon['license_level'], 'sm', 'inline', 'slate' )
'disabled' => 'disabled',
* Determine if we require to display educational items according to the addon status.
* @param array $addon Addon data.
* @noinspection PhpUnusedParameterInspection
private function is_edu_required_by_status( $addon ) {
empty( $addon['action'] ) ||
empty( $addon['status'] ) || (
$addon['status'] === 'active' && $addon['action'] !== 'upgrade'