<tag>

Hooks a function on to a specific action.

Description

apply_filters( '<tag>', (unknown) $args ); 

Parameters (1)

0. $args (unknown)
The args.

Usage

To run the hook, copy the example below.
  1. $args = apply_filters( '{$tag}', $args ); 
  2.  
  3. if ( !empty( $args ) ) { 
  4.  
  5. // everything has led up to this point... 
  6.  
  7.  
The following example is for adding a hook callback.
  1. // define the <tag> callback 
  2. function filter_tag( $args ) { 
  3. // make filter magic happen here... 
  4. return $args
  5. }; 
  6.  
  7. // add the filter 
  8. add_filter( "{$tag}", 'filter_tag', 10, 1 ); 
To remove a hook callback, use the example below.
  1. // remove the filter 
  2. remove_filter( "{$tag}", 'filter_tag', 10, 1 ); 

Defined (1)

The filter is defined in the following location(s).

/wp-includes/plugin.php  
  1. return apply_filters_ref_array( $tag, $args );