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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 |
|---|---|
| 431 | $return = "<ul class='wp-tag-cloud'>\n\t<li>"; |
| 432 | $return .= join("</li>\n\t<li>", $a); |
| 433 | $return .= "</li>\n</ul>\n"; |
| 434 | break; |
| 435 | default : |
| 436 | $return = join("\n", $a); |
| 437 | break; |
| 438 | endswitch; |
| 439 | |
| 440 | return apply_filters( 'wp_generate_tag_cloud', $return, $tags, $args ); |
| 441 | } |
| 442 | |
| 443 | // |
| 444 | // Helper functions |
| 445 | // |
| 446 | |
| 447 | function walk_category_tree() { |
| 448 | $walker = new Walker_Category; |
| 449 | $args = func_get_args(); |