[wp-trac] [WordPress Trac] #34659: Whitelist for validation functions which only accept one argument

[WordPress Trac]

#34659: Whitelist for validation functions which only accept one argument
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 Reporter:  danielbachhuber  |       Owner:
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  4.4
Component:  REST API         |     Version:
 Severity:  normal           |  Resolution:
 Keywords:  has-patch        |     Focuses:
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Comment (by danielbachhuber):

 Replying to [comment:1 TimothyBlynJacobs]:
 > The idea of whitelisting functions seems quite a bit kludgy. Most of my
 sanitization functions, for example, also only accept one parameter. And
 whitelisting all of those doesn't seem ideal. Plus, what about functions
 that only need access to the first two?

 In each of these cases, do the functions error or exhibit unexpected
 behavior when additional arguments are passed? If not, and they silently
 discard the extra arguments, then you wouldn't need to whitelist them.

 > Why not specify the number of arguments to be passed to the sanitization
 function the same way we do for hooks?

 Could, although that's a different type of complexity. What would the
 syntax look like?

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Ticket URL: <https://core.trac.wordpress.org/ticket/34659#comment:2>
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