File: //var/www/html/ielts-store/wp-content/plugins/automatewoo/includes/Variables/Membership_Plan_ID.php
<?php
// phpcs:ignoreFile
namespace AutomateWoo;
if ( ! defined( 'ABSPATH' ) ) exit;
/**
 * @class Variable_Membership_Plan_ID
 */
class Variable_Membership_Plan_ID extends Variable {
	function load_admin_details() {
		$this->description = __( "Displays the plan ID of the membership.", 'automatewoo');
	}
	/**
	 * @param $membership \WC_Memberships_User_Membership
	 * @param $parameters
	 * @return string
	 */
	function get_value( $membership, $parameters ) {
		if ( ! $plan = $membership->get_plan() ) {
			return false;
		}
		return $plan->get_id();
	}
}