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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 |
|---|---|
| 237 | * Filters the available menu items. |
| 238 | * |
| 239 | * @since 4.3.0 |
| 240 | * |
| 241 | * @param array $items The array of menu items. |
| 242 | * @param string $type The object type. |
| 243 | * @param string $object The object name. |
| 244 | * @param int $page The current page number. |
| 245 | */ |
| 246 | $items = apply_filters( 'customize_nav_menu_available_items', $items, $type, $object, $page ); |
| 247 | |
| 248 | return $items; |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * Ajax handler for searching available menu items. |
| 253 | * |
| 254 | * @since 4.3.0 |
| 255 | */ |