[wp-trac] [WordPress Trac] #64950: wp_using_ext_object_cache can return null, causing type failures, potential fatals

[WordPress Trac]

#64950: wp_using_ext_object_cache can return null, causing type failures, potential
fatals
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 Reporter:  ronalfy                              |       Owner:
                                                 |  westonruter
     Type:  defect (bug)                         |      Status:  reviewing
 Priority:  normal                               |   Milestone:  7.1
Component:  Cache API                            |     Version:  3.7
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-test-info has-unit-    |     Focuses:
  tests                                          |
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Comment (by liaison):

 Maintaining bool|null is significant for backwards compatibility. It
 respects the 'de facto' behavior of WordPress over the years.

 This proposed patch aims to align the implementation with the long-
 standing documentation, providing type safety for modern PHP 8.x
 environments. An unexpected null can lead to TypeError.

 The added test case is designed to complete the patch's intent.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64950#comment:9>
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