Filters the list of CSS classes to include with each page item in the list.

• wp_list_pages()

$css_class string[]

An array of CSS classes to be applied to each list item.

$page WP_Post

Page data object.

$depth int

Depth of page, used for padding.

$args array

An array of arguments.

$current_page_id int

ID of the current page.

File: wp-includes/class-walker-page.php. View all references

$css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page_id ) );