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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 263 | /** |
| 264 | * Fires at the beginning of the publishing actions section of the Publish meta box. |
| 265 | * |
| 266 | * @since 2.7.0 |
| 267 | * @since 4.9.0 Added the `$post` parameter. |
| 268 | * |
| 269 | * @param WP_Post|null $post WP_Post object for the current post on Edit Post screen, |
| 270 | * null on Edit Link screen. |
| 271 | */ |
| 272 | do_action( 'post_submitbox_start', $post ); |
| 273 | ?> |
| 274 | <div id="delete-action"> |
| 275 | <?php |
| 276 | if ( current_user_can( "delete_post", $post->ID ) ) { |
| 277 | if ( !EMPTY_TRASH_DAYS ) |
| 278 | $delete_text = __('Delete Permanently'); |
| 279 | else |
| 280 | $delete_text = __('Move to Trash'); |
| 281 | ?> |
| Line | Code |
| 949 | <label for="link_private" class="selectit"><input id="link_private" name="link_visible" type="checkbox" value="N" <?php checked($link->link_visible, 'N'); ?> /> <?php _e('Keep this link private') ?></label> |
| 950 | </div> |
| 951 | </div> |
| 952 | |
| 953 | </div> |
| 954 | |
| 955 | <div id="major-publishing-actions"> |
| 956 | <?php |
| 957 | /** This action is documented in wp-admin/includes/meta-boxes.php */ |
| 958 | do_action( 'post_submitbox_start', null ); |
| 959 | ?> |
| 960 | <div id="delete-action"> |
| 961 | <?php |
| 962 | if ( !empty($_GET['action']) && 'edit' == $_GET['action'] && current_user_can('manage_links') ) { ?> |
| 963 | <a class="submitdelete deletion" href="<?php echo wp_nonce_url("link.php?action=delete&link_id=$link->link_id", 'delete-bookmark_' . $link->link_id); ?>" onclick="if ( confirm('<?php echo esc_js(sprintf(__("You are about to delete this link '%s'\n 'Cancel' to stop, 'OK' to delete."), $link->link_name )); ?>') ) {return true;}return false;"><?php _e('Delete'); ?></a> |
| 964 | <?php } ?> |
| 965 | </div> |
| 966 | |
| 967 | <div id="publishing-action"> |