Array en arguments (ook ACF)

'cat' => 208,
'cat' => array(74, -205, -207),
'category__and' => array($idactual,11), 
'category__not_in' => '10',

'posts_per_page' => -1,
'post__in' => array($makelaar1,$makelaar2,$makelaar3,$makelaar4),

'post_status' => 'future/publish'
'orderby' => 'rand/title/date', 
'order' => 'ASC/DESC' );

'meta_key' => '&Volgorde',
'orderby' => 'meta_value', 

$paginasoort = get_field('tarievensoort', $post->ID);

'meta_query' => array(
	array(
		'key'     => 'tarievensoort',
		'value'   => $paginasoort['value'],
		'compare' => 'LIKE'
	)
),

$posts = get_posts( array(
    'meta_query' => array(
        array(
            'key'   => 'show_in_sidebar',
            'value' => '1',
        )
    )
) );