Title: WP_Customize_Nav_Menus::customize_dynamic_partial_args
Published: April 12, 2016
Last modified: May 20, 2026

---

# WP_Customize_Nav_Menus::customize_dynamic_partial_args( array|false $partial_args, string $partial_id ): array

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#wp--skip-link--target)

Filters arguments for dynamic nav_menu selective refresh partials.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#parameters)󠁿

 `$partial_args`array|falserequired

Partial args.

`$partial_id`stringrequired

Partial ID.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#return)󠁿

 array Partial args.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#source)󠁿

    ```php
    public function customize_dynamic_partial_args( $partial_args, $partial_id ) {

    	if ( preg_match( '/^nav_menu_instance\[[0-9a-f]{32}\]$/', $partial_id ) ) {
    		if ( false === $partial_args ) {
    			$partial_args = array();
    		}
    		$partial_args = array_merge(
    			$partial_args,
    			array(
    				'type'                => 'nav_menu_instance',
    				'render_callback'     => array( $this, 'render_nav_menu_partial' ),
    				'container_inclusive' => true,
    				'settings'            => array(), // Empty because the nav menu instance may relate to a menu or a location.
    				'capability'          => 'edit_theme_options',
    			)
    		);
    	}

    	return $partial_args;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-customize-nav-menus.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/class-wp-customize-nav-menus.php#L1318)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-customize-nav-menus.php#L1318-L1337)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_customize_nav_menus/customize_dynamic_partial_args/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.5.0](https://developer.wordpress.org/reference/since/4.5.0/) | Introduced. |

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