Getting a list of all ACF fields may be useful e.g. if you want the user to select one of them as a data source. In my case, I needed that list to provide a choices list for an ACF select field.
This is an easy task if you know where to look :)
Getting a list of all ACF fields (example)
$options = array();
$field_groups = acf_get_field_groups();
foreach ( $field_groups as $group ) {
// DO NOT USE here: $fields = acf_get_fields($group['key']);
// because it causes repeater field bugs and returns "trashed" fields
$fields = get_posts(array(
'posts_per_page' => -1,
'post_type' => 'acf-field',
'orderby' => 'menu_order',
'order' => 'ASC',
'suppress_filters' => true, // DO NOT allow WPML to modify the query
'post_parent' => $group['ID'],
'post_status' => 'any',
'update_post_meta_cache' => false
));
foreach ( $fields as $field ) {
$options[$field->post_name] = $field->post_title;
}
}As a result in the $options variable, you will have an associative array of all the fields, labels keyed by the field name.
More details
In the above example, $field_groups variable is an array with all field groups. Here is the output of a var_dump($fied_groups):
array (size=3)
0 =>
array (size=13)
'ID' => int 1747
'key' => string 'group_58f769278b155' (length=19)
'title' => string 'Some title' (length=11)
'fields' =>
array (size=0)
empty
'location' =>
array (size=1)
0 =>
array (size=1)
...
'menu_order' => int 0
'position' => string 'normal' (length=6)
'style' => string 'default' (length=7)
'label_placement' => string 'top' (length=3)
'instruction_placement' => string 'label' (length=5)
'hide_on_screen' => string '' (length=0)
'active' => int 1
'description' => string '' (length=0)
1 => ...If you want to get only fields which are defined by user/admin via the ACF editor you may filter all the field groups by ID. Groups created with ACF PHP API will have ID = 0.