aMember (site.php): Show expiration date for future access periods in Active Subscription Widget

site.php

<?php

Am_Di::getInstance()->blocks->add('member/main/bottom', new Am_Block_Base(null, 'future-dates', null, function(Am_View $v) {
    $user = Am_Di::getInstance()->user;
    $_ = $user->getFutureProductsBeginning();
    $out = [];
    foreach ($_ as $pid => $begin) {
        $period = json_encode($user->getExpire($pid) == Am_Period::MAX_SQL_DATE ?
            sprintf("begins %s", amDate($begin)) :
            sprintf("%s&ndash;%s", amDate($begin), amDate($user->getExpire($pid))));
        $out[] = "    jQuery('#member-subscriptions #product-item-{$pid} .am-list-subscriptions-date').html({$period});";
    }
    if ($out) {
        $out = implode("\n", $out);
        return <<<CUT
<script>
jQuery(function(){
{$out}
});
</script>
CUT;

    }
}));