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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 |
|---|---|
| 29 | $action = 'editedcat'; |
| 30 | $nonce_action = 'update-link-category_' . $cat_ID; |
| 31 | do_action('edit_link_category_form_pre', $category); |
| 32 | } else { |
| 33 | $heading = '<h2>' . __('Add Link Category') . '</h2>'; |
| 34 | $submit_text = __('Add Category'); |
| 35 | $form = '<form name="addcat" id="addcat" class="add:the-list: validate" method="post" action="link-category.php">'; |
| 36 | $action = 'addcat'; |
| 37 | $nonce_action = 'add-link-category'; |
| 38 | do_action('add_link_category_form_pre', $category); |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * @ignore |
| 43 | * @since 2.7 |
| 44 | * @internal Used to prevent errors in page when no category is being edited. |
| 45 | * |
| 46 | * @param object $category |
| 47 | */ |