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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 |
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43 | $nav_menu = ! empty( $instance['nav_menu'] ) ? wp_get_nav_menu_object( $instance['nav_menu'] ) : false; |
44 |
|
45 | if ( ! $nav_menu ) { |
46 | return; |
47 | } |
48 |
|
49 | $title = ! empty( $instance['title'] ) ? $instance['title'] : ''; |
50 |
|
51 | /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ |
52 | $title = apply_filters( 'widget_title', $title, $instance, $this->id_base ); |
53 |
|
54 | echo $args['before_widget']; |
55 |
|
56 | if ( $title ) { |
57 | echo $args['before_title'] . $title . $args['after_title']; |
58 | } |
59 |
|
60 | $nav_menu_args = array( |
61 | 'fallback_cb' => '', |