acf/pre_load_reference │ filter-hook │ ACF 5.6.5

acf_get_reference

Retrieves the field key for a given field name and post_id.

Usage

add_filter( 'acf/pre_load_reference', 'wp_kama_acf_pre_load_reference_filter', 10, 2 );

/**
 * Function for `acf/pre_load_reference` filter-hook.
 * 
 * @param string $field_name The name of the field. eg 'sub_heading'.
 * @param        $post_id    
 *
 * @return string
 */
function wp_kama_acf_pre_load_reference_filter( $field_name, $post_id ){
	// filter...
	return $field_name;
}

$field_name(string)

The name of the field. eg 'sub_heading'.

$post_id

-

Changelog

Where the hook is called

$reference = apply_filters( 'acf/pre_load_reference', null, $field_name, $post_id );

Where the hook is used in Advanced Custom Fields PRO

add_filter( 'acf/pre_load_reference', array( $this, 'pre_load_reference' ), 10, 3 );