<field>

This filter is documented in wp-includes/post.php.

Description

apply_filters( '<field>', (unknown) $value, (unknown) $user_id, (unknown) $context ); 

Parameters (3)

0. $value (unknown)

The value.

1. $user_id (unknown)

The user id.

2. $context (unknown)

The context.

Usage

To run the hook, copy the example below.

$value = apply_filters( '{$field}', $value, $user_id, $context ); 
                         
if ( !empty( $value ) ) { 
                         
   // everything has led up to this point... 
                         
} 
  

The following example is for adding a hook callback.

// define the <field> callback 
function filter_field( $value, $user_id, $context ) { 
    // make filter magic happen here... 
    return $value; 
}; 
         
// add the filter 
add_filter( "{$field}", 'filter_field', 10, 3 ); 

To remove a hook callback, use the example below.

// remove the filter 
remove_filter( "{$field}", 'filter_field', 10, 3 );