[wp-trac] [WordPress Trac] #60055: Array to string conversion warning after r50157

[WordPress Trac]

#60055: Array to string conversion warning after r50157
--------------------------+-----------------------------
 Reporter:  dcavins       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  REST API      |    Version:  6.4.2
 Severity:  minor         |   Keywords:  has-patch
  Focuses:                |
--------------------------+-----------------------------
 When using the new REST API feature that allows one to add the
 `include_children` parameter to a taxonomy-term-filtered request, like

 {{{
 const query = {
     categories: {
         terms: [ 3, 5, 7 ],
         include_children: true,
     },
 };
 }}}
 (example taken from https://make.wordpress.org/core/2021/02/23/rest-api-
 changes-in-wordpress-5-7/)

 I'm encountering the warning:
 PHP Warning:  Array to string conversion in /Users/cavinsd/Local
 Sites/caresnet/app/public/wp-includes/class-wp.php on line 361

 The error refers to this line:
 {{{
 $this->query_vars[ $t->query_var ] = str_replace( ' ', '+',
 $this->query_vars[ $t->query_var ] );
 }}}
 which is expecting a flat taxonomy parameter, not a multidimensional
 array.

 Thanks for adding the `include_children` parameter; it makes working with
 the REST API much simpler in some cases!

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/60055>
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