[wp-trac] [WordPress Trac] #56198: Check cache key type

[WordPress Trac]

#56198: Check cache key type
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 Reporter:  tillkruess   |       Owner:  (none)
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  6.1
Component:  Cache API    |     Version:  trunk
 Severity:  normal       |  Resolution:
 Keywords:  has-patch    |     Focuses:  performance
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Comment (by tillkruess):

 @SergeyBiryukov @malthert: Thanks for the suggestions, I've implemented
 them all and tried to make the code as readable as possible given the
 nesting possibilities.

 I've kept the `debug_backtrace()` call for now, because passing in
 `__METHOD__` like @malthert says seems dumb.

 @spacedmonkey asked out floats on GitHub, should we simply disallow them,
 or cast them to strings (seems risky to me).

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Ticket URL: <https://core.trac.wordpress.org/ticket/56198#comment:8>
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