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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 |
|---|---|
| 234 | if ( ! is_user_logged_in() ) { |
| 235 | if ( get_option('users_can_register') ) |
| 236 | $link = $before . '<a href="' . site_url('wp-login.php?action=register', 'login') . '">' . __('Register') . '</a>' . $after; |
| 237 | else |
| 238 | $link = ''; |
| 239 | } else { |
| 240 | $link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after; |
| 241 | } |
| 242 | |
| 243 | echo apply_filters('register', $link); |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * Theme container function for the 'wp_meta' action. |
| 248 | * |
| 249 | * The 'wp_meta' action can have several purposes, depending on how you use it, |
| 250 | * but one purpose might have been to allow for theme switching. |
| 251 | * |
| 252 | * @since 1.5.0 |