[wp-trac] [WordPress Trac] #51855: wp_dropdown_categories allows multiple classes

[WordPress Trac]

#51855: wp_dropdown_categories allows multiple classes
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 Reporter:  tnash         |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by SergeyBiryukov):

 Hi there, welcome back to WordPress Trac! Thanks for the ticket.

 Just noting this also appears to apply to:
 * `wp_list_categories()`
 * `wp_dropdown_page()`
 * `wp_dropdown_users()`

 On the other hand, `wp_list_bookmarks()` does use `sanitize_html_class()`,
 see [32906] / #51666.

 Not allowing multiple classes in the other functions would be a back-
 compat break, they should at least allow for passing in an array of
 classes, same as `wp_list_bookmarks()`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/51855#comment:1>
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