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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 |
|---|---|
| 174 | //Split the bookmarks into ul's for each category |
| 175 | $cats = get_terms('link_category', "category_name=$category_name&include=$category&orderby=$category_orderby&order=$category_order&hierarchical=0"); |
| 176 | |
| 177 | foreach ( (array) $cats as $cat ) { |
| 178 | $params = array_merge($r, array('category'=>$cat->term_id)); |
| 179 | $bookmarks = get_bookmarks($params); |
| 180 | if ( empty($bookmarks) ) |
| 181 | continue; |
| 182 | $output .= str_replace(array('%id', '%class'), array("linkcat-$cat->term_id", $class), $category_before); |
| 183 | $catname = apply_filters( "link_category", $cat->name ); |
| 184 | $output .= "$title_before$catname$title_after\n\t<ul>\n"; |
| 185 | $output .= _walk_bookmarks($bookmarks, $r); |
| 186 | $output .= "\n\t</ul>\n$category_after\n"; |
| 187 | } |
| 188 | } else { |
| 189 | //output one single list using title_li for the title |
| 190 | $bookmarks = get_bookmarks($r); |
| 191 | |
| 192 | if ( !empty($bookmarks) ) { |