[wp-trac] [WordPress Trac] #17780: Use PHP native double encoding prevention in htmlspecialchars()

[WordPress Trac]

#17780: Use PHP native double encoding prevention in htmlspecialchars()
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 Reporter:  nbachiyski   |       Owner:  miqrogroove
     Type:  enhancement  |      Status:  accepted
 Priority:  normal       |   Milestone:  4.3
Component:  Formatting   |     Version:  3.2.1
 Severity:  normal       |  Resolution:
 Keywords:  has-patch    |     Focuses:
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Comment (by azaozz):

 Replying to [comment:10 miqrogroove]:

 Unfortunately I don't remember anything about these patches, it's been
 more than 6 years :)

 Seems like at the time (and maybe still) `_wp_specialchars()` is getting
 double encoded strings and is expected to return single encoded. It is
 "undocumented behaviour" but not sure if we can remove it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/17780#comment:11>
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