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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 |
|---|---|
| 302 | if ( ! empty( $item->front_or_home ) ) |
| 303 | $output .= ' add-to-top'; |
| 304 | |
| 305 | $output .= '" name="menu-item[' . $possible_object_id . '][menu-item-object-id]" value="'. esc_attr( $item->object_id ) .'" /> '; |
| 306 | |
| 307 | if ( ! empty( $item->label ) ) { |
| 308 | $title = $item->label; |
| 309 | } elseif ( isset( $item->post_type ) ) { |
| 310 | /** This filter is documented in wp-includes/post-template.php */ |
| 311 | $title = apply_filters( 'the_title', $item->post_title, $item->ID ); |
| 312 | if ( ! empty( $item->front_or_home ) && _x( 'Home', 'nav menu home label' ) !== $title ) |
| 313 | $title = sprintf( _x( 'Home: %s', 'nav menu front page title' ), $title ); |
| 314 | } |
| 315 | |
| 316 | $output .= isset( $title ) ? esc_html( $title ) : esc_html( $item->title ); |
| 317 | $output .= '</label>'; |
| 318 | |
| 319 | // Menu item hidden fields |
| 320 | $output .= '<input type="hidden" class="menu-item-db-id" name="menu-item[' . $possible_object_id . '][menu-item-db-id]" value="' . $possible_db_id . '" />'; |