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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 |
---|---|
476 | else |
477 | $depth = -1; // Flat. |
478 |
|
479 | $output .= walk_category_tree( $categories, $depth, $r ); |
480 | } |
481 |
|
482 | if ( $title_li && 'list' == $style ) |
483 | $output .= '</ul></li>'; |
484 |
|
485 | $output = apply_filters( 'wp_list_categories', $output, $args ); |
486 |
|
487 | if ( $echo ) |
488 | echo $output; |
489 | else |
490 | return $output; |
491 | } |
492 |
|
493 | /** |
494 | * Display tag cloud. |