[wp-trac] [WordPress Trac] #40344: WP_REST_Request::set_param() ignores parameter order.

[WordPress Trac]

#40344: WP_REST_Request::set_param() ignores parameter order.
-------------------------------+-----------------------------
 Reporter:  TimothyBlynJacobs  |      Owner:
     Type:  defect (bug)       |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  REST API           |    Version:  trunk
 Severity:  normal             |   Keywords:
  Focuses:  rest-api           |
-------------------------------+-----------------------------
 `WP_Rest_Request::get_param()` traverses through the parameter order but
 `WP_Rest_Request::set_param()` does not. For JSON requests, this means
 that changing a parameter with `set_param()` will have no affect on
 `get_param()`.

 Example Code:
 {{{
 $request = new WP_REST_Request();
 $request->add_header( 'content-type', 'application/json' );
 $request->set_method( 'POST' );
 $request->set_body( wp_json_encode( [
         'param' => 'hi'
 ] ) );

 echo $request->get_param( 'param' ); // hi
 $request->set_param( 'param', 'hello' );
 echo $request->get_param( 'param' ); // hi
 }}}

 Patch incoming.

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Ticket URL: <https://core.trac.wordpress.org/ticket/40344>
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