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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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64 | $css_class[] = 'current_page_item'; |
65 | } elseif ( $_current_page && $page->ID === $_current_page->post_parent ) { |
66 | $css_class[] = 'current_page_parent'; |
67 | } |
68 | } elseif ( get_option( 'page_for_posts' ) === $page->ID ) { |
69 | $css_class[] = 'current_page_parent'; |
70 | } |
71 |
|
72 | /** This filter is documented in wp-includes/class-walker-page.php */ |
73 | $css_classes = implode( ' ', apply_filters( 'page_css_class', $css_class, $page, $depth, $args, $current_page_id ) ); |
74 | $css_classes = $css_classes ? ' class="' . esc_attr( $css_classes ) . '"' : ''; |
75 |
|
76 | if ( '' === $page->post_title ) { |
77 | /* translators: %d: ID of a post. */ |
78 | $page->post_title = sprintf( __( '#%d (no title)', 'twentytwenty' ), $page->ID ); |
79 | } |
80 |
|
81 | $args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before']; |
82 | $args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after']; |