WP hooks navigation: Home/browse • Actions index • Filters index
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 |
|---|---|
| 379 | if ( $hierarchical ) |
| 380 | $depth = $r['depth']; // Walk the full depth. |
| 381 | else |
| 382 | $depth = -1; // Flat. |
| 383 | |
| 384 | $output .= walk_category_dropdown_tree( $categories, $depth, $r ); |
| 385 | $output .= "</select>\n"; |
| 386 | } |
| 387 | |
| 388 | $output = apply_filters( 'wp_dropdown_cats', $output ); |
| 389 | |
| 390 | if ( $echo ) |
| 391 | echo $output; |
| 392 | |
| 393 | return $output; |
| 394 | } |
| 395 | |
| 396 | /** |
| 397 | * Display or retrieve the HTML list of categories. |