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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 |
|---|---|
| 218 | |
| 219 | /** |
| 220 | * Filters the navigation menu name being returned. |
| 221 | * |
| 222 | * @since 4.9.0 |
| 223 | * |
| 224 | * @param string $menu_name Menu name. |
| 225 | * @param string $location Menu location identifier. |
| 226 | */ |
| 227 | return apply_filters( 'wp_get_nav_menu_name', $menu_name, $location ); |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Determines whether the given ID is a nav menu item. |
| 232 | * |
| 233 | * @since 3.0.0 |
| 234 | * |
| 235 | * @param int $menu_item_id The ID of the potential nav menu item. |
| 236 | * @return bool Whether the given ID is that of a nav menu item. |