document_title_parts filter-hook . WP 4.4.0

Filters the parts of the document title.

Usage

add_filter( 'document_title_parts', 'filter_function_name_12' );
function filter_function_name_12( $title ){
	// filter...

	return $title;
}

$title(array)

The document title parts.

• title(string)
  Title of the viewed page.

• page(string)
  Optional. Page number if paginated.

• tagline(string)
  Optional. Site description when on home page.

• site(string)
  Optional. Site title when not on home page.

Where the hook is called

$title = apply_filters( 'document_title_parts', $title );

Where in WP core the hook is used WordPress