[wp-trac] Re: [WordPress Trac] #5231: add_action('all', ...) causes unexpected behaviour

[WordPress Trac]

#5231: add_action('all', ...) causes unexpected behaviour
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 Reporter:  tellyworth               |        Owner:  anonymous
     Type:  defect                   |       Status:  reopened 
 Priority:  normal                   |    Milestone:  2.4      
Component:  General                  |      Version:           
 Severity:  normal                   |   Resolution:           
 Keywords:  has-patch needs-testing  |  
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Comment (by mdawaffe):

 has_filter_with_arg.diff = has_filter.diff plus the following.

  1. {{{has_filter( $tag )}}} improved to return false if
 {{{$wp_filter[$tag]}}} is empty (not just if not set).
  2. {{{remove_filter( $tag, $func, $priority )}}} improved to unset
 {{{$wp_filter[$tag][$priority]}}} as necessary (so that {{{has_filter()}}}
 can work).
  3. new {{{has_filter( $tag, $function )}}} syntax.  Returns
 {{{$priority}}} if {{{$function}}} is attached to {{{$tag}}}, {{{false}}}
 otherwise.
  4. tweak to internally used {{{_wp_filter_build_unique_id()}}} to make
 {{{has_filter( $tag, $function )}}} work.
  5. same for {{{*_action}}}.

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Ticket URL: <http://trac.wordpress.org/ticket/5231#comment:30>
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