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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 |
|---|---|
| 81 | $output .= $indent . '<li' . $id . $value . $class_names .'>'; |
| 82 | |
| 83 | $attributes = ! empty( $item->attr_title ) ? ' title="' . esc_attr( $item->attr_title ) .'"' : ''; |
| 84 | $attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) .'"' : ''; |
| 85 | $attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) .'"' : ''; |
| 86 | $attributes .= ! empty( $item->url ) ? ' href="' . esc_attr( $item->url ) .'"' : ''; |
| 87 | |
| 88 | $item_output = $args->before; |
| 89 | $item_output .= '<a'. $attributes .'>'; |
| 90 | $item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after; |
| 91 | $item_output .= '</a>'; |
| 92 | $item_output .= $args->after; |
| 93 | |
| 94 | $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * @see Walker::end_el() |
| 99 | * @since 3.0.0 |