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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 |
---|---|
375 | * |
376 | * The order affects which parameters are checked when using WP_REST_Request::get_param() |
377 | * and family. This acts similarly to PHP's `request_order` setting. |
378 | * |
379 | * @since 4.4.0 |
380 | * |
381 | * @param string[] $order Array of types to check, in order of priority. |
382 | * @param WP_REST_Request $request The request object. |
383 | */ |
384 | return apply_filters( 'rest_request_parameter_order', $order, $this ); |
385 | } |
386 |
|
387 | /** |
388 | * Retrieves a parameter from the request. |
389 | * |
390 | * @since 4.4.0 |
391 | * |
392 | * @param string $key Parameter name. |
393 | * @return mixed|null Value if set, null otherwise. |