WordPress at a glance
filter is not described

get_the_author_(field) filter-hook . WP 2.8.0

Filters the value of the requested user metadata.

The filter name is dynamic and depends on the $field parameter of the function.

Usage

add_filter( 'get_the_author_(field)', 'filter_function_name_9821', 10, 3 );
function filter_function_name_9821( $value, $user_id, $original_user_id ){
	// filter...

	return $value;
}
$value(string)
The value of the metadata.
$user_id(int)
The user ID for the value.
$original_user_id(int/true/false)
The original user ID, as passed to the function.

Notes

  • Since 4.3.0 The $original_user_id parameter was added.

Where the hook is called

get_the_author_meta()
wp-includes/author-template.php 181
return apply_filters( "get_the_author_{$field}", $value, $user_id, $original_user_id );

Where the hook is used (in WP core)

Does not used.