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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 |
---|---|
327 | if ( '' == $author_nicename ) { |
328 | $user = get_userdata($author_id); |
329 | if ( !empty($user->user_nicename) ) |
330 | $author_nicename = $user->user_nicename; |
331 | } |
332 | $link = str_replace('%author%', $author_nicename, $link); |
333 | $link = get_option('home') . trailingslashit($link); |
334 | } |
335 |
|
336 | $link = apply_filters('author_link', $link, $author_id, $author_nicename); |
337 |
|
338 | return $link; |
339 | } |
340 |
|
341 | /** |
342 | * Get the specified author's preferred display name. |
343 | * @param int $auth_id The ID of the author. |
344 | * @return string The author's display name. |
345 | */ |