How to make posts display order according to custom field in Wordpress?

Question

WordPress

There are posts that have an arbitrary field - a list of checkboxes from ACF. There are sizes 40, 42, 44, etc.
There is a cookie that is set to match a checkbox, like "56". You must first display posts where the checkbox 56 is checked, then 58/60, then all the rest in random order. I can't figure out how to do this at all.

Answer 1

query_posts(
    array(
            'order'     => 'ASC',
            'meta_key' => 'your_meta_key',
            'orderby'   => 'meta_value_num'
    )
);

instead of your_meta_key - insert your field name