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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 |
|---|---|
| 2415 | * Add hidden input fields to the meta box save form. |
| 2416 | * |
| 2417 | * Hook into this action to print `<input type="hidden" ... />` fields, which will be POSTed back to |
| 2418 | * the server when meta boxes are saved. |
| 2419 | * |
| 2420 | * @since 5.0.0 |
| 2421 | * |
| 2422 | * @params WP_Post $post The post that is being edited. |
| 2423 | */ |
| 2424 | do_action( 'block_editor_meta_box_hidden_fields', $post ); |
| 2425 | } |
| 2426 | |