Show Subscription Expiry Date

Hi I am trying to show the expiration of the date on a php page using a shortcode.
I almost got it to work, but instead of giving me the numbers of days remaining, it gives me the total days for the subscription. Could you please help? I am sure its an easy fix to this code. Here is the code:

add_shortcode( ‘m_count_down’, ‘m_count_down’ );
function m_count_down( $attr ) {
if ( class_exists( ‘Membership_Plugin’ ) ) {
$subscription_id = isset( $attr[‘s_id’] ) ? $attr[‘s_id’] : 0;
if ( ! is_user_logged_in() ) {
return ”;
}

if ( $subscription_id == 0 ) {
return ”;
}

if ( ! current_user_on_subscription( $subscription_id ) ) {
return ”;
}

//get the current day left
$subscription = new Membership_Model_Subscription( $subscription_id );
ob_start();
$now = strtotime( current_time( ‘mysql’ ) );
$expires = ! empty( $start ) ? $start : $now;

//get ordered subscription levels
$levels = $subscription->get_levels();

$tolevel_order = 1;
$fromlevel_order = 1;
foreach ( $levels as $level ) {
if ( ! empty( $tolevel_id ) && $level->level_id == $tolevel_id ) {
$tolevel_order = $level->level_order;
continue;
}
if ( ! empty( $fromsub_id ) && ! empty( $fromlevel_id ) && $fromsub_id == $subscription->id && $level->level_id == $fromlevel_id ) {
$fromlevel_order = $level->level_order;
continue;
}
}

//sum every level period to get the subscription end date.
foreach ( $levels as $level ) {
if ( $level->level_order < $tolevel_order ) {
//if entering in the middle of a subscription, jumping beginning levels, those not count
continue;
}
if ( ( $fromlevel_order < $tolevel_order ) && $level->level_order == $fromlevel_order ) {
//reset to current date if already a subscription member and moving to another level
$expires = $now;
}
switch ( $level->level_period_unit ) {
case ‘d’:
$period = ‘days’;
break;
case ‘w’:
$period = ‘weeks’;
break;
case ‘m’:
$period = ‘months’;
break;
case ‘y’:
$period = ‘years’;
break;
}
$expires = strtotime( ‘+’ . $level->level_period . ‘ ‘ . $period, $expires );

if ( $level->sub_type == ‘indefinite’ ) {
//never expires
$expires = strtotime( ‘+10 years’, $expires );

break;
} elseif ( $level->sub_type == ‘serial’ ) {
//sum only once and break – will not go to next level if exists
break;
}
}
$now = new DateTime( date( ‘Y-m-d’, time() ) );
$expiry_date = new DateTime( date( ‘Y-m-d’, $expires ) );
$day_left = $now->diff( $expiry_date );
echo ‘Days left: ‘.$day_left->days.’ days’;
$content = ob_get_contents();
ob_end_clean();

return $content;
}
}

Thanks

https://www.ads-software.com/plugins/membership/