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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 |
---|---|
363 | * |
364 | * The order affects which parameters are checked when using get_param() and family. |
365 | * This acts similarly to PHP's `request_order` setting. |
366 | * |
367 | * @since 4.4.0 |
368 | * |
369 | * @param string[] $order Array of types to check, in order of priority. |
370 | * @param WP_REST_Request $this The request object. |
371 | */ |
372 | return apply_filters( 'rest_request_parameter_order', $order, $this ); |
373 | } |
374 |
|
375 | /** |
376 | * Retrieves a parameter from the request. |
377 | * |
378 | * @since 4.4.0 |
379 | * |
380 | * @param string $key Parameter name. |
381 | * @return mixed|null Value if set, null otherwise. |