Proper way to use apply_filters() with class functions?
Multi tool use
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I want to allow my user to override a function. It's a plugin. I believe that apply_filters() can be used for this. this can be overridden by add_filter().
I am confused about how to use it.
Say if i have a class like this
class Example{
public function hello(){
$title = the_title_attribute();
return $title;
}
}
What change should I make to allow that $title to be modified? where to place the apply filter?
Thanks
plugin-development filters
edited May 14 at 17:11
butlerblog
2,26921429
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
add a comment |
I want to allow my user to override a function. It's a plugin. I believe that apply_filters() can be used for this. this can be overridden by add_filter().
I am confused about how to use it.
Say if i have a class like this
class Example{
public function hello(){
$title = the_title_attribute();
return $title;
}
}
What change should I make to allow that $title to be modified? where to place the apply filter?
Thanks
plugin-development filters
edited May 14 at 17:11
butlerblog
2,26921429
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
add a comment |
I want to allow my user to override a function. It's a plugin. I believe that apply_filters() can be used for this. this can be overridden by add_filter().
I am confused about how to use it.
Say if i have a class like this
class Example{
public function hello(){
$title = the_title_attribute();
return $title;
}
}
What change should I make to allow that $title to be modified? where to place the apply filter?
Thanks
plugin-development filters
edited May 14 at 17:11
butlerblog
2,26921429
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
I want to allow my user to override a function. It's a plugin. I believe that apply_filters() can be used for this. this can be overridden by add_filter().
I am confused about how to use it.
Say if i have a class like this
class Example{
public function hello(){
$title = the_title_attribute();
return $title;
}
}
What change should I make to allow that $title to be modified? where to place the apply filter?
Thanks
plugin-development filters
plugin-development filters
edited May 14 at 17:11
butlerblog
2,26921429
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
edited May 14 at 17:11
butlerblog
2,26921429
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
edited May 14 at 17:11
butlerblog
2,26921429
edited May 14 at 17:11
butlerblog
2,26921429
edited May 14 at 17:11
butlerblog
2,26921429
2,26921429
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
asked May 14 at 16:47
Latheesh V M VillaLatheesh V M Villa
3981324
3981324
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
It depends on you where you want to call apply_filters().
It can be right when you defined the $title:
$title = apply_filters( 'my_hook', the_title_attribute( 'echo=0' ) ); // set echo to false
return $title;
Or in the return call:
$title = the_title_attribute( 'echo=0' ); // set echo to false
return apply_filters( 'my_hook', $title );
Then one can hook to the filter like so:
add_filter( 'my_hook', 'some_function' );
PS: As @birgire pointed, the_title_attribute() will echo output, unless the echo argument is set to false. So be sure to use the function with the proper parameters.
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
2
ps:the_title_attribute()will echo output, unless theechoargument is set tofalse.
– birgire
May 14 at 17:03
2
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
1
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
It depends on you where you want to call apply_filters().
It can be right when you defined the $title:
$title = apply_filters( 'my_hook', the_title_attribute( 'echo=0' ) ); // set echo to false
return $title;
Or in the return call:
$title = the_title_attribute( 'echo=0' ); // set echo to false
return apply_filters( 'my_hook', $title );
Then one can hook to the filter like so:
add_filter( 'my_hook', 'some_function' );
PS: As @birgire pointed, the_title_attribute() will echo output, unless the echo argument is set to false. So be sure to use the function with the proper parameters.
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
2
ps:the_title_attribute()will echo output, unless theechoargument is set tofalse.
– birgire
May 14 at 17:03
2
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
1
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
add a comment |
It depends on you where you want to call apply_filters().
It can be right when you defined the $title:
$title = apply_filters( 'my_hook', the_title_attribute( 'echo=0' ) ); // set echo to false
return $title;
Or in the return call:
$title = the_title_attribute( 'echo=0' ); // set echo to false
return apply_filters( 'my_hook', $title );
Then one can hook to the filter like so:
add_filter( 'my_hook', 'some_function' );
PS: As @birgire pointed, the_title_attribute() will echo output, unless the echo argument is set to false. So be sure to use the function with the proper parameters.
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
2
ps:the_title_attribute()will echo output, unless theechoargument is set tofalse.
– birgire
May 14 at 17:03
2
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
1
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
add a comment |
It depends on you where you want to call apply_filters().
It can be right when you defined the $title:
$title = apply_filters( 'my_hook', the_title_attribute( 'echo=0' ) ); // set echo to false
return $title;
Or in the return call:
$title = the_title_attribute( 'echo=0' ); // set echo to false
return apply_filters( 'my_hook', $title );
Then one can hook to the filter like so:
add_filter( 'my_hook', 'some_function' );
PS: As @birgire pointed, the_title_attribute() will echo output, unless the echo argument is set to false. So be sure to use the function with the proper parameters.
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
It depends on you where you want to call apply_filters().
It can be right when you defined the $title:
$title = apply_filters( 'my_hook', the_title_attribute( 'echo=0' ) ); // set echo to false
return $title;
Or in the return call:
$title = the_title_attribute( 'echo=0' ); // set echo to false
return apply_filters( 'my_hook', $title );
Then one can hook to the filter like so:
add_filter( 'my_hook', 'some_function' );
PS: As @birgire pointed, the_title_attribute() will echo output, unless the echo argument is set to false. So be sure to use the function with the proper parameters.
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
edited May 14 at 23:10
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
answered May 14 at 16:59
Sally CJSally CJ
6,9392616
6,9392616
2
ps:the_title_attribute()will echo output, unless theechoargument is set tofalse.
– birgire
May 14 at 17:03
2
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
1
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
add a comment |
2
ps:the_title_attribute()will echo output, unless theechoargument is set tofalse.
– birgire
May 14 at 17:03
2
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
1
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
2
2
ps:
the_title_attribute() will echo output, unless the echo argument is set to false.– birgire
May 14 at 17:03
ps:
the_title_attribute() will echo output, unless the echo argument is set to false.– birgire
May 14 at 17:03
2
2
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
Thanks @birgire. I've added that to the answer. :)
– Sally CJ
May 14 at 17:06
1
1
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
Thank you, got it cleared
– Latheesh V M Villa
May 14 at 17:25
add a comment |
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