[wp-trac] [WordPress Trac] #57578: Deprecated preg_replace() warning PHP 8.1

[WordPress Trac]

#57578: Deprecated preg_replace() warning PHP 8.1
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 Reporter:  ipajen           |       Owner:  (none)
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  6.2
Component:  Administration   |     Version:  trunk
 Severity:  normal           |  Resolution:
 Keywords:  php81 has-patch  |     Focuses:
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Comment (by jrf):

 Replying to [comment:2 SergeyBiryukov]:
 > [attachment:"57578.diff"] fixes the inconsistency by setting the
 `$title` global on the affected screens, since it is apparently assumed to
 be set on all core administration screens. This resolves the notice in my
 testing. No new strings are introduced, because these strings match the
 existing page titles.

 @SergeyBiryukov Sounds like a solid analysis and the correct solution. 👍

 Is there anything we could do unit test-wise to safeguard this ? I haven't
 looked at the code in detail (on my break), but I fear this may be
 difficult due to it being part of the global page generation code ?

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Ticket URL: <https://core.trac.wordpress.org/ticket/57578#comment:3>
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