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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 |
|---|---|
| 833 | function start_el(&$output, $category, $depth, $args) { |
| 834 | extract($args); |
| 835 | |
| 836 | $cat_name = esc_attr( $category->name ); |
| 837 | $cat_name = apply_filters( 'list_cats', $cat_name, $category ); |
| 838 | $link = '<a href="' . esc_attr( get_term_link($category) ) . '" '; |
| 839 | if ( $use_desc_for_title == 0 || empty($category->description) ) |
| 840 | $link .= 'title="' . esc_attr( sprintf(__( 'View all posts filed under %s' ), $cat_name) ) . '"'; |
| 841 | else |
| 842 | $link .= 'title="' . esc_attr( strip_tags( apply_filters( 'category_description', $category->description, $category ) ) ) . '"'; |
| 843 | $link .= '>'; |
| 844 | $link .= $cat_name . '</a>'; |
| 845 | |
| 846 | if ( !empty($feed_image) || !empty($feed) ) { |
| 847 | $link .= ' '; |
| 848 | |
| 849 | if ( empty($feed_image) ) |
| 850 | $link .= '('; |
| 851 | |