Title: rest_request_parameter_order
Published: December 9, 2015
Last modified: April 28, 2025

---

# apply_filters( ‘rest_request_parameter_order’, string[] $order, WP_REST_Request $request )

## In this article

 * [Description](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#description)
 * [Parameters](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#changelog)

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

Filters the parameter priority order for a REST API request.

## 󠀁[Description](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#description)󠁿

The order affects which parameters are checked when using [WP_REST_Request::get_param()](https://developer.wordpress.org/reference/classes/wp_rest_request/get_param/)
and family. This acts similarly to PHP’s `request_order` setting.

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

 `$order`string[]

Array of types to check, in order of priority.

`$request`[WP_REST_Request](https://developer.wordpress.org/reference/classes/wp_rest_request/)

The request object.

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

    ```php
    return apply_filters( 'rest_request_parameter_order', $order, $this );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/rest-api/class-wp-rest-request.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/rest-api/class-wp-rest-request.php#L397)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/rest-api/class-wp-rest-request.php#L397-L397)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/rest_request_parameter_order/?output_format=md#related)󠁿

| Used by | Description | 
| [WP_REST_Request::get_parameter_order()](https://developer.wordpress.org/reference/classes/wp_rest_request/get_parameter_order/)`wp-includes/rest-api/class-wp-rest-request.php` |

Retrieves the parameter priority order.

  |

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

| Version | Description | 
| [4.4.0](https://developer.wordpress.org/reference/since/4.4.0/) | Introduced. |

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