[wp-trac] [WordPress Trac] #55257: map_deep() function incompatibility with incomplete objects in PHP 8.0+

[WordPress Trac]

#55257: map_deep() function incompatibility with incomplete objects in PHP 8.0+
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 Reporter:  codex-m                              |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  6.2
Component:  Formatting                           |     Version:  5.9.1
 Severity:  major                                |  Resolution:
 Keywords:  has-patch php8 has-unit-tests 2nd-   |     Focuses:
  opinion                                        |
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Changes (by azaozz):

 * keywords:  has-patch php8 has-unit-tests => has-patch php8 has-unit-tests
     2nd-opinion


Comment:

 > Incomplete objects (`__PHP_Incomplete_Class`) used to have no issues
 with `map_deep()` before PHP 8.0 because it ignores any incomplete object.
 With PHP 8.0 - this now returns fatal error

 The question here, imho, is whether the fatal error in PHP 8.0 is a
 "feature" or should it be considered a bug :)

 If it is a feature, perhaps it shouldn't be prevented when `WP_DEBUG` is
 true. An incomplete class definitely means something's wrong, right?

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Ticket URL: <https://core.trac.wordpress.org/ticket/55257#comment:11>
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