acf/form/allowed_field_keys │ filter-hook │ ACF 6.8.2

Filters the list of $_POST['acf'] keys a front-end form submission is allowed to save.

Use this to permit additional field keys when a developer dynamically injects fields into a form via JavaScript that aren't part of the form's declared field configuration.

Usage

add_filter( 'acf/form/allowed_field_keys', 'wp_kama_acf_form_allowed_field_keys_filter', 10, 2 );

/**
 * Function for `acf/form/allowed_field_keys` filter-hook.
 * 
 * @param array $keys The allowed top-level $_POST['acf'] keys.
 * @param array $form The validated form configuration.
 *
 * @return array
 */
function wp_kama_acf_form_allowed_field_keys_filter( $keys, $form ){
	// filter...
	return $keys;
}

$keys(array)

The allowed top-level $_POST['acf'] keys.

$form(array)

The validated form configuration.

Changelog

Where the hook is called

$keys = apply_filters( 'acf/form/allowed_field_keys', $keys, $form );

Where the hook is used in Advanced Custom Fields PRO