[wp-trac] [WordPress Trac] #60599: REST API: rest_filter_response_fields fails with a PHP fatal when a custom API endpoint returns a scalar value.

[WordPress Trac]

#60599: REST API: rest_filter_response_fields fails with a PHP fatal when a custom
API endpoint returns a scalar value.
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 Reporter:  xknown                      |       Owner:  (none)
     Type:  defect (bug)                |      Status:  new
 Priority:  normal                      |   Milestone:  Future Release
Component:  REST API                    |     Version:
 Severity:  normal                      |  Resolution:
 Keywords:  has-unit-tests needs-patch  |     Focuses:
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Comment (by xknown):

 Yes, I grabbed the example from that page :)

 Anyway, the reason I reported this is because we noticed this problem
 while upgrading a WP site from PHP 7.4 to PHP 8.x.

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Ticket URL: <https://core.trac.wordpress.org/ticket/60599#comment:3>
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