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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 |
|---|---|
| 318 | */ |
| 319 | function rest_get_url_prefix() { |
| 320 | /** |
| 321 | * Filters the REST URL prefix. |
| 322 | * |
| 323 | * @since 4.4.0 |
| 324 | * |
| 325 | * @param string $prefix URL prefix. Default 'wp-json'. |
| 326 | */ |
| 327 | return apply_filters( 'rest_url_prefix', 'wp-json' ); |
| 328 | } |
| 329 | |
| 330 | /** |
| 331 | * Retrieves the URL to a REST endpoint on a site. |
| 332 | * |
| 333 | * Note: The returned URL is NOT escaped. |
| 334 | * |
| 335 | * @since 4.4.0 |
| 336 | * |