Thanks to the suggestion bij Deej on this thread I managed to work this out.
$repeater = get_field('recensie');
foreach ($repeater as $key => $row) {
$recensent[$key] = $row['recensent'];
$recensent_functie[$key] = $row['recensent_functie'];
$recensent_link[$key] = $row['recensent_linkedin'];
$recensent_foto[$key] = $row['recensent_foto'];
$recensent_tekst[$key] = $row['recensie_tekst'];
$recensie_type[$key] = $row['recensie_type'];
}
array_multisort($recensie_type, SORT_ASC, $repeater);
foreach( $repeater as $row ) {
// styling for each field
} ?>
