conditional tag for search.php

I’m using conditional tags in the search.php to identify the type of posts presented (by adding something to the title: like “Upcoming event” or “News”). This works with:

<?php if ( get_post_type() == 'evenementen' ) { ?>

But now I need to make sure that events that have passed today’s date are identified as “Archived event”.
This is what I’ve done so far for the upcoming events:

<?php // Get today's date in the right format
$todaysDate = date('Y-m-d / H:i'); 

$argsue = array(
    'post_type' => 'evenementen',
    'meta_key' => 'Wanneer',
    'meta_compare' => '>=',
    'meta_value' => '' . $todaysDate . ''
  );
?>

<?php if (in_array($argsue)) { ?>

But this is not working. Hope someone can help me with this!
Thanks in advance, John.