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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 |
|---|---|
| 206 | if ( '' == $author_nicename ) { |
| 207 | $user = get_userdata($author_id); |
| 208 | if ( !empty($user->user_nicename) ) |
| 209 | $author_nicename = $user->user_nicename; |
| 210 | } |
| 211 | $link = str_replace('%author%', $author_nicename, $link); |
| 212 | $link = get_option('home') . trailingslashit($link); |
| 213 | } |
| 214 | |
| 215 | $link = apply_filters('author_link', $link, $author_id, $author_nicename); |
| 216 | |
| 217 | return $link; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * List all the authors of the blog, with several options available. |
| 222 | * |
| 223 | * <ul> |
| 224 | * <li>optioncount (boolean) (false): Show the count in parenthesis next to the |