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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 |
|---|---|
| 1268 | * about supported authentication schemes, supported namespaces, routes |
| 1269 | * available on the API, and a small amount of data about the site. |
| 1270 | * |
| 1271 | * @since 4.4.0 |
| 1272 | * @since 6.0.0 Added `$request` parameter. |
| 1273 | * |
| 1274 | * @param WP_REST_Response $response Response data. |
| 1275 | * @param WP_REST_Request $request Request data. |
| 1276 | */ |
| 1277 | return apply_filters( 'rest_index', $response, $request ); |
| 1278 | } |
| 1279 | |
| 1280 | /** |
| 1281 | * Adds a link to the active theme for users who have proper permissions. |
| 1282 | * |
| 1283 | * @since 5.7.0 |
| 1284 | * |
| 1285 | * @param WP_REST_Response $response REST API response. |
| 1286 | */ |