mepr-subscription-num-days.php

<?php

function mepr_subscription_num_days() {
	$user_id = get_current_user_id();

	if ( 0 == $user_id ) {
		return;
	}

	$user = new MeprUser( $user_id );

	$txns = $user->active_product_subscriptions( 'transactions' );

	if ( is_array( $txns ) ) {
		foreach ( $txns as $txn ) {
			if ( isset( $txn->product_id ) && $txn->product_id == 475 /* Change 475 to your membership's ID */ ) {
				$expiration_date = $txn->expires_at; // Expiration date
			}
		}
	}
}
add_action( 'init', 'mepr_subscription_num_days' );