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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 |
|---|---|
| 228 | if ( '' == $author_nicename ) { |
| 229 | $user = get_userdata($author_id); |
| 230 | if ( !empty($user->user_nicename) ) |
| 231 | $author_nicename = $user->user_nicename; |
| 232 | } |
| 233 | $link = str_replace('%author%', $author_nicename, $link); |
| 234 | $link = home_url( user_trailingslashit( $link ) ); |
| 235 | } |
| 236 | |
| 237 | $link = apply_filters('author_link', $link, $author_id, $author_nicename); |
| 238 | |
| 239 | return $link; |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * List all the authors of the blog, with several options available. |
| 244 | * |
| 245 | * <ul> |
| 246 | * <li>optioncount (boolean) (false): Show the count in parenthesis next to the |