[wp-trac] [WordPress Trac] #55748: wp_query post_type taxonomies doesn't accept array in url if hierarchical

[WordPress Trac]

#55748: wp_query post_type taxonomies doesn't accept array in url if hierarchical
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 Reporter:  dg12345       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Query         |    Version:  5.9.3
 Severity:  minor         |   Keywords:
  Focuses:                |
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 if you put the custom taxonomy in the url with an array value
 i.e. ?custom_tax[]=term-1&custom_tax[]=term-2
 it should filter by those terms

 however if you look at the code for wp_query if the taxonomy is
 hierarchical it is put through  wp_basename which cannot process arrays
 and so the input is completely lost

 https://github.com/WordPress/WordPress/blob/102004b50565c767390328aef2357a235d60b026
 /wp-includes/class-wp-query.php#L1131-L1151

 to resolve either we need to move the if(is_array()) above the wp_basename
 if or make wp_basename accept arrays

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Ticket URL: <https://core.trac.wordpress.org/ticket/55748>
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