[wp-trac] [WordPress Trac] #7846: do_action and apply_filter should report if the user function is missing

[WordPress Trac]

#7846: do_action and apply_filter should report if the user function is missing
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 Reporter:  nbachiyski  |       Owner:  anonymous
     Type:  defect      |      Status:  new      
 Priority:  normal      |   Milestone:  2.8      
Component:  General     |     Version:           
 Severity:  normal      |    Keywords:           
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 do_action/apply_filters tell me somehow that I the user function doesn't
 exists. For example I have entered the action name wrong and there is no
 proper way to debug it other from luck and guessing.

 Fixing do_action is easy -- it can just return false or WP_Error. The
 problem is with apply_filters -- it's return value is dependent on the
 user function and we can't interfere with it in no way.

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Ticket URL: <http://trac.wordpress.org/ticket/7846>
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