Orderby ACF custom field date don't work

Question

I view the other post but I found nothing, I\'m on since 3 days :

I want display 3 \'evenements\' in the order ASC but 2018 is always before 2017

Answer 1

As your date format is not in Y-m-d so you need to define your own logic for shorting

function wh_posts_orderby($orderby, $query) {
    //Only for custom orderby key
    if ($query->get('orderby') != 'yyyymmdd_date_format')
        return $orderby;
    if (!( $order = $query->get('order') ))
        $order = 'ASC';
    global $wpdb;
    $fieldName = $wpdb->postmeta . '.meta_value';
    return "STR_TO_DATE(" . $fieldName . ", '%Y%m%d') " . $order;
}

add_filter('posts_orderby', 'wh_posts_orderby', 10, 2);

Add the ^^above code to your active theme functions.php file.

---

Now you can sort your post by date (format YYYYMMDD)

$auj = date('Ymd');
$args = [
    'category_name' => 'evenements',
    'posts_per_page' => 3,
    'meta_key' => 'date_de_fin',
    'orberby' => 'yyyymmdd_date_format', //check this line
    'order' => 'ASC',
    'meta_query' => [
        'relation' => 'AND', //added this
        [
            'key' => 'date_de_fin',
            'value' => $auj,
            'compare' => '>=',
            'type' => 'DATE'
        ],
    ]
];
$queryEvent = new WP_Query($args);
if ($queryEvent->have_posts()) :
    /* Start the Loop */
    while ($queryEvent->have_posts()) : $queryEvent->the_post();

    //you post

    endwhile;
endif;

Related answer How do I query posts and use the 'orderby' attribute to order posts in loop according to date 'meta_value'?

Hope this helps!