<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.

$args = apply_filters( '{$tag}', $args ); 
                         
if ( !empty( $args ) ) { 
                         
   // everything has led up to this point... 
                         
} 
  

The following example is for adding a hook callback.

// define the <tag> callback 
function filter_tag( $args ) { 
    // make filter magic happen here... 
    return $args; 
}; 
         
// add the filter 
add_filter( "{$tag}", 'filter_tag', 10, 1 ); 

To remove a hook callback, use the example below.

// remove the filter 
remove_filter( "{$tag}", 'filter_tag', 10, 1 );