[wp-trac] [WordPress Trac] #43224: Extract `$utf8_pcre` from `wp_check_invalid_utf8()` into a separate function

[WordPress Trac]

#43224: Extract `$utf8_pcre` from `wp_check_invalid_utf8()` into a separate
function
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 Reporter:  jaswrks      |       Owner:  (none)
     Type:  enhancement  |      Status:  closed
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Formatting   |     Version:
 Severity:  normal       |  Resolution:  fixed
 Keywords:               |     Focuses:
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Comment (by dmsnell):

 Thanks for asking for the double-check @desrosj — it never hurts.

 Perhaps there is another resolution more appropriate here, but I took this
 statement from the ticket as the dominant ask:

 > other areas of the codebase might want to run the same check, or maybe
 plugins would like to check also

 That is, this is less about //removing// the ad-hoc check from
 `wp_check_invalid_utf8()` and more about //abstracting// the check and
 making it available. It may have simply been the case that it was already
 available when this ticket was created and that wasn’t clear.

 Either way, the function has been available //and// it’s no longer
 relevant in `wp_check_invalid_utf8()` since it was refactored in [60793].

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Ticket URL: <https://core.trac.wordpress.org/ticket/43224#comment:7>
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