[wp-trac] [WordPress Trac] #16245: remove_filter makes filters applied after that useless

[WordPress Trac]

#16245: remove_filter makes filters applied after that useless
--------------------------+------------------------------
 Reporter:  oddoneout     |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Plugins       |     Version:  3.0.4
 Severity:  major         |  Resolution:
 Keywords:                |
--------------------------+------------------------------
Changes (by scribu):

 * severity:  normal => major


Old description:

> Here's some codes:
>
> {{{
> function run_once() {
> remove_filter( 'foobar', 'run_once' );
> return 'test';
> }
> add_filter( 'foobar', 'run_once' );
>
> add_filter( 'foobar', function($test) {return 'test again';}, 11 );
>
> echo apply_filters( 'foobar', '', 'huh' );
> }}}
>
> The result of this is 'test' instead of 'test again'. This might happen
> with remove_action, I haven't tested that function though.

New description:

 Here's some codes:

 {{{
 function run_once() {
         remove_filter( current_filter(), __FUNCTION__ );
         return 'test';
 }
 add_filter( 'foobar', 'run_once' );

 function another_filter() {
         return 'test again';
 }
 add_filter( 'foobar', 'another_filter', 11 );

 echo apply_filters( 'foobar', '' );
 }}}

 The result of this is 'test' instead of 'test again'. This might happen
 with remove_action, I haven't tested that function though.

--

Comment:

 Reproduced with r17312.

 Cleaned up the example code slightly.

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/16245#comment:2>
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