get_addons() ); } /** * Get addons. * * @since 1.6.6 * * @return array Addons array. */ abstract protected function get_addons(); /** * Ensure that we do not display activated addon items if those addons are not allowed according to the current license. * * @since 1.6.6 * * @param string $hook Hook name. */ protected function filter_not_allowed_addons( $hook ) { $edu_addons = wp_list_pluck( $this->get_addons(), 'slug' ); foreach ( $edu_addons as $i => $addon ) { $edu_addons[ $i ] = strtolower( preg_replace( '/[^a-zA-Z0-9]+/', '', $addon ) ); } if ( empty( $GLOBALS['wp_filter'][ $hook ]->callbacks ) ) { return; } foreach ( $GLOBALS['wp_filter'][ $hook ]->callbacks as $priority => $hooks ) { foreach ( $hooks as $name =>