(deprecated) │ filter-hook │ ACF 1.0

Usage

add_filter( '(deprecated)', 'wp_kama_deprecated_filter' );

/**
 * Function for `(deprecated)` filter-hook.
 * 
 * @param  $args 
 *
 * @return 
 */
function wp_kama_deprecated_filter( $args ){
	// filter...
	return $args;
}

$args

-

Where the hook is called

$args[0] = apply_filters_ref_array( $hook['deprecated'], $args );

do_action_ref_array( $hook['deprecated'], $args );

Where the hook is used in Advanced Custom Fields PRO