• o.li.e

• in reply to: Sort checkbox choices A-Z
• August 11, 2022 at 9:11 am

I think you should use ksort – it sorts the array by key.
Also you can’t save it to the $field[‘choices’], because this function does it by pointers. Just do it like this:

function sort_checkbox( $field ) {
	ksort($field["choices"]);
	return $field;   
}

add_filter('acf/load_field/key=field_5d4164d40898f', 'sort_checkbox');