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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 |
---|---|
195 | $output .= "$title_before$title_li$title_after\n\t<ul>\n"; |
196 | $output .= _walk_bookmarks($bookmarks, $r); |
197 | $output .= "\n\t</ul>\n$category_after\n"; |
198 | } else { |
199 | $output .= _walk_bookmarks($bookmarks, $r); |
200 | } |
201 | } |
202 | } |
203 |
|
204 | $output = apply_filters( 'wp_list_bookmarks', $output ); |
205 |
|
206 | if ( !$echo ) |
207 | return $output; |
208 | echo $output; |
209 | } |
210 |
|
211 | ?> |