Add another variable to array to use it in foreach-loop [closed]

I have a function in my database class, which gives me a list of events a certain user is attending

function getEventList($uid)
{
    $date = date('Y-m-d H:i:s');
    $eventSQL = "SELECT em.eventID, e.eventName, e.eventTime FROM eventmembers em INNER JOIN events e ON em.eventID = e.eventID WHERE userIDInvited = :uid";
    $eventPrepare = $this->prepare($eventSQL);
    $eventPrepare->bindParam(':uid', $uid);
    $eventPrepare->execute();
    return ($eventPrepare->rowCount() > 0)
        ? $eventPrepare->fetchAll() : array();
}

To access these results I'm simply doing this

//php

$eventList = $db->getEventList($userid);
if($eventList == NULL){
$smarty->assign('events', 'No events'); 
}
else{
$count = sizeof($eventList);
for($i = 0; $i < $count; $i++)
{
    $smarty->assign('events', $eventList);
}   
}

html

<p>MY EVENTS</p>
    {foreach from=$events item=result}
        <a href="https://localhost/FinalYear/events/{$result.eventID}.php">{$result.eventName}</a><br>
        {$result.eventTime}<br>({$result.timeRemain} Days remaining)
        <br>
        <br>
{/foreach}

What I want to do now is to add, that there is also saying how many days are remaining till this event occurs.

What I did was simply adding this in the for-loop.

$startTimeStamp = strtotime($date);
   $endTimeStapm = strtotime($eventList[$i]['eventTime']);
   $timeDiff = abs($endTimeStapm - $startTimeStamp);
   $numberDays = $timeDiff/86400;
   $numberDays = intval($numberDays);

The problem now was, then when, the user attends more than one event, the $numberDays will be always overwritten. So I tried to add $numberDays to the end of the current array index. But this gives me just an endless-loop. Without $numberDays var_dump gives me this output, when I have to entries

array(2) { [0]=> array(3) { ["eventID"]=> string(1) "1" ["eventName"]=> string(7) "Konzert" ["eventTime"]=> string(19) "2013-03-28 00:00:00" } [1]=> array(3) { ["eventID"]=> string(1) "2" ["eventName"]=> string(4) "Oper" ["eventTime"]=> string(19) "2013-03-30 00:00:00" } } array(2) { [0]=> array(3) { ["eventID"]=> string(1) "1" ["eventName"]=> string(7) "Konzert" ["eventTime"]=> string(19) "2013-03-28 00:00:00" } [1]=> array(3) { ["eventID"]=> string(1) "2" ["eventName"]=> string(4) "Oper" ["eventTime"]=> string(19) "2013-03-30 00:00:00" } } 

But I also want at the end of every entry the days remaining. The problem is, that I can't do it in another loop, because that would mean that I would need to make another loop in the .html-file inside the other loop. So it would be run through before the other loop has jumped to its next entry.

Any suggestions how to solve this?

My database-table looks like this

table events

eventID, eventName, eventDescription, eventLocaion, eventTime, eventHost, privacy Settings

table eventmembers

eventID, userIDInvited, InvitationStatus