Title: WP_REST_Revisions_Controller::prepare_excerpt_response
Published: December 6, 2016
Last modified: May 20, 2026

---

# WP_REST_Revisions_Controller::prepare_excerpt_response( string $excerpt, WP_Post $post ): string

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#source)
 * [Hooks](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#hooks)
 * [Related](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#changelog)

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

Checks the post excerpt and prepare it for single post output.

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

 `$excerpt`stringrequired

The post excerpt.

`$post`[WP_Post](https://developer.wordpress.org/reference/classes/wp_post/)required

Post revision object.

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

 string Prepared excerpt or empty string.

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

    ```php
    protected function prepare_excerpt_response( $excerpt, $post ) {

    	/** This filter is documented in wp-includes/post-template.php */
    	$excerpt = apply_filters( 'the_excerpt', $excerpt, $post );

    	if ( empty( $excerpt ) ) {
    		return '';
    	}

    	return $excerpt;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php#L911)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php#L911-L921)

## 󠀁[Hooks](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_excerpt_response/?output_format=md#hooks)󠁿

 [apply_filters( ‘the_excerpt’, string $post_excerpt )](https://developer.wordpress.org/reference/hooks/the_excerpt/)

Filters the displayed post excerpt.

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

| Uses | Description | 
| [apply_filters()](https://developer.wordpress.org/reference/functions/apply_filters/)`wp-includes/plugin.php` |

Calls the callback functions that have been added to a filter hook.

  |

| Used by | Description | 
| [WP_REST_Revisions_Controller::prepare_item_for_response()](https://developer.wordpress.org/reference/classes/wp_rest_revisions_controller/prepare_item_for_response/)`wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php` |

Prepares the revision for the REST response.

  |

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

| Version | Description | 
| [4.7.0](https://developer.wordpress.org/reference/since/4.7.0/) | Introduced. |

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