Helpful function for MemberPress with Oxygen Builder.

get-expire-date-memberpress.php

<?php

function mpr_get_expire_date() {
	if(is_user_logged_in()){
		$user = MeprUtils::get_currentuserinfo();
		$subscriptions = $user->active_product_subscriptions('transactions');
			if(!empty($subscriptions)) {
				foreach($subscriptions as $s){
					// Get Today Date
					$today = date("d-m-Y");
					$today_str = strtotime($today);
                    		// Get Start Date and convert it to string
                    		// At the moment we DO NOT USE THE START DATE
					//$start = $s->created_at;
					//$start_str = strtotime($start);
                    		// Get Expire Date and convert it to string
					$expire = $s->expires_at;
					$expire_str = strtotime($expire);
					// Get Free Product ID
					$free = $s->product_id;
                    		// Check if the TODAY DATE is smaller than EXPIRE DATE
					if($today_str <= $expire_str && $free != '261'){
					    // If it is TRUE it means that the membership is still active
						return "mpr-active";
					} else {
					    // If it is FALSE it means that the membership IS NOT active
						return "mpr-inactive";
					}
				}
			} else {
				return 'mpr-inactive';
			}
		}
	}

?>