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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 |
|---|---|
| 240 | $output .= "$title_before$title_li$title_after\n\t<ul class='xoxo blogroll'>\n"; |
| 241 | $output .= _walk_bookmarks($bookmarks, $r); |
| 242 | $output .= "\n\t</ul>\n$category_after\n"; |
| 243 | } else { |
| 244 | $output .= _walk_bookmarks($bookmarks, $r); |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | $output = apply_filters( 'wp_list_bookmarks', $output ); |
| 250 | |
| 251 | if ( !$echo ) |
| 252 | return $output; |
| 253 | echo $output; |
| 254 | } |
| 255 | |
| 256 | ?> |
| 257 | |