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