[wp-trac] [WordPress Trac] #40156: Warning for invalid hook callback is not very useful

[WordPress Trac]

#40156: Warning for invalid hook callback is not very useful
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 Reporter:  Shelob9      |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Plugins      |     Version:  0.71
 Severity:  normal       |  Resolution:
 Keywords:               |     Focuses:
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Comment (by Compute):

 Maybe just check for `is_callable()`  when WP_DEBUG is turned on if it
 shows that performance is an issue?

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Ticket URL: <https://core.trac.wordpress.org/ticket/40156#comment:3>
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