[wp-trac] [WordPress Trac] #43208: Separate setting validation from sanitization

[WordPress Trac]

#43208: Separate setting validation from sanitization
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 Reporter:  flixos90               |       Owner:
     Type:  enhancement            |      Status:  new
 Priority:  normal                 |   Milestone:  Awaiting Review
Component:  Options, Meta APIs     |     Version:
 Severity:  normal                 |  Resolution:
 Keywords:  2nd-opinion has-patch  |     Focuses:
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Changes (by flixos90):

 * keywords:  needs-patch 2nd-opinion => 2nd-opinion has-patch


Comment:

 [attachment:43208.diff] introduces the `validate_option_{$option}` filter
 as a possible implementation. Note that it is only fired if previous core
 validation didn't already produce an error. This allows for full backward-
 compatibility, allows performing additional validation even on core
 values, while preventing plugins from removing errors detected by core.

 For easy handling of setting validation, a `$validate_callback` argument
 has been introduced for `register_setting()` which is then hooked into the
 filter.

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Ticket URL: <https://core.trac.wordpress.org/ticket/43208#comment:1>
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