$query = new WP_Query(array(
'post_status' => 'publish',
'orderby' => 'publish_date',
'order' => 'DESC'
));
//DESC sorts by newest, ASC by oldest. GL fellow grepper userusort($array, function($a, $b) {
return new DateTime($a['datetime']) <=> new DateTime($b['datetime']);
});<?php
function compareDate($date1, $date2){
return strtotime($date1) - strtotime($date2);
}
$dateArray = array("2021-11-11", "2021-10-10","2021-08-10", "2021-09-08");
usort($dateArray, "compareDate");
print_r($dateArray);
?>
//Output
Array
(
[0] => 2021-08-10
[1] => 2021-09-08
[2] => 2021-10-10
[3] => 2021-11-11
)