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 |
|---|---|
| 197 | * @since 4.2.0 |
| 198 | * |
| 199 | * @see wp_list_categories() |
| 200 | * |
| 201 | * @param array $css_classes An array of CSS classes to be applied to each list item. |
| 202 | * @param object $category Category data object. |
| 203 | * @param int $depth Depth of page, used for padding. |
| 204 | * @param array $args An array of wp_list_categories() arguments. |
| 205 | */ |
| 206 | $css_classes = implode( ' ', apply_filters( 'category_css_class', $css_classes, $category, $depth, $args ) ); |
| 207 | $css_classes = $css_classes ? ' class="' . esc_attr( $css_classes ) . '"' : ''; |
| 208 | |
| 209 | $output .= $css_classes; |
| 210 | $output .= ">$link\n"; |
| 211 | } elseif ( isset( $args['separator'] ) ) { |
| 212 | $output .= "\t$link" . $args['separator'] . "\n"; |
| 213 | } else { |
| 214 | $output .= "\t$link<br />\n"; |
| 215 | } |