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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 |
|---|---|
| 186 | <?php |
| 187 | if ( has_action( 'blog_privacy_selector' ) ) { ?> |
| 188 | <input id="blog-public" type="radio" name="blog_public" value="1" <?php checked( 1, $blog_public ); ?> /> |
| 189 | <label for="blog-public"><?php _e( 'Allow search engines to index this site' );?></label><br/> |
| 190 | <input id="blog-norobots" type="radio" name="blog_public" value="0" <?php checked( 0, $blog_public ); ?> /> |
| 191 | <label for="blog-norobots"><?php _e( 'Discourage search engines from indexing this site' ); ?></label> |
| 192 | <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> |
| 193 | <?php |
| 194 | /** This action is documented in wp-admin/options-reading.php */ |
| 195 | do_action( 'blog_privacy_selector' ); |
| 196 | } else { ?> |
| 197 | <label for="blog_public"><input name="blog_public" type="checkbox" id="blog_public" value="0" <?php checked( 0, $blog_public ); ?> /> |
| 198 | <?php _e( 'Discourage search engines from indexing this site' ); ?></label> |
| 199 | <p class="description"><?php _e( 'It is up to search engines to honor this request.' ); ?></p> |
| 200 | <?php } ?> |
| 201 | </fieldset> |
| 202 | </td> |
| 203 | </tr> |
| 204 | </table> |