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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 |
|---|---|
| 69 | |
| 70 | $class_names = $value = ''; |
| 71 | |
| 72 | $classes = empty( $item->classes ) ? array() : (array) $item->classes; |
| 73 | $classes[] = 'menu-item-' . $item->ID; |
| 74 | |
| 75 | $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) ); |
| 76 | $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : ''; |
| 77 | |
| 78 | $id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args ); |
| 79 | $id = $id ? ' id="' . esc_attr( $id ) . '"' : ''; |
| 80 | |
| 81 | $output .= $indent . '<li' . $id . $value . $class_names .'>'; |
| 82 | |
| 83 | $atts = array(); |
| 84 | $atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : ''; |
| 85 | $atts['target'] = ! empty( $item->target ) ? $item->target : ''; |
| 86 | $atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : ''; |
| 87 | $atts['href'] = ! empty( $item->url ) ? $item->url : ''; |