[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 malthert):

 Definitely, is_valid_group() would replace the empty() for fallback to
 default group - with no error message for groups?

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Ticket URL: <https://core.trac.wordpress.org/ticket/56198#comment:16>
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