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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 339 | * |
| 340 | * Allows modification of the response before returning. |
| 341 | * |
| 342 | * @since 4.4.0 |
| 343 | * |
| 344 | * @param WP_HTTP_Response $result Result to send to the client. Usually a WP_REST_Response. |
| 345 | * @param WP_REST_Server $this Server instance. |
| 346 | * @param WP_REST_Request $request Request used to generate the response. |
| 347 | */ |
| 348 | $result = apply_filters( 'rest_post_dispatch', rest_ensure_response( $result ), $this, $request ); |
| 349 | |
| 350 | // Wrap the response in an envelope if asked for. |
| 351 | if ( isset( $_GET['_envelope'] ) ) { |
| 352 | $result = $this->envelope_response( $result, isset( $_GET['_embed'] ) ); |
| 353 | } |
| 354 | |
| 355 | // Send extra data from response objects. |
| 356 | $headers = $result->get_headers(); |
| 357 | $this->send_headers( $headers ); |