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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 |
|---|---|
| 144 | <tr valign="top" class="option-site-visibility"> |
| 145 | <th scope="row"><?php has_action( 'blog_privacy_selector' ) ? _e( 'Site Visibility' ) : _e( 'Search Engine Visibility' ); ?> </th> |
| 146 | <td><fieldset><legend class="screen-reader-text"><span><?php has_action( 'blog_privacy_selector' ) ? _e( 'Site Visibility' ) : _e( 'Search Engine Visibility' ); ?> </span></legend> |
| 147 | <?php if ( has_action( 'blog_privacy_selector' ) ) : ?> |
| 148 | <input id="blog-public" type="radio" name="blog_public" value="1" <?php checked('1', get_option('blog_public')); ?> /> |
| 149 | <label for="blog-public"><?php _e( 'Allow search engines to index this site' );?></label><br/> |
| 150 | <input id="blog-norobots" type="radio" name="blog_public" value="0" <?php checked('0', get_option('blog_public')); ?> /> |
| 151 | <label for="blog-norobots"><?php _e( 'Discourage search engines from indexing this site' ); ?></label> |
| 152 | <p class="description"><?php _e( 'Note: Neither of these options blocks access to your site — it is up to search engines to honor your request.' ); ?></p> |
| 153 | <?php do_action('blog_privacy_selector'); ?> |
| 154 | <?php else : ?> |
| 155 | <label for="blog_public"><input name="blog_public" type="checkbox" id="blog_public" value="0" <?php checked( '0', get_option( 'blog_public' ) ); ?> /> |
| 156 | <?php _e( 'Discourage search engines from indexing this site' ); ?></label> |
| 157 | <p class="description"><?php _e( 'It is up to search engines to honor this request.' ); ?></p> |
| 158 | <?php endif; ?> |
| 159 | </fieldset></td> |
| 160 | </tr> |
| 161 | |
| 162 | <?php do_settings_fields( 'reading', 'default' ); ?> |