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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 |
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217 |
|
218 | /** |
219 | * Filters the navigation menu name being returned. |
220 | * |
221 | * @since 4.9.0 |
222 | * |
223 | * @param string $menu_name Menu name. |
224 | * @param string $location Menu location identifier. |
225 | */ |
226 | return apply_filters( 'wp_get_nav_menu_name', $menu_name, $location ); |
227 | } |
228 |
|
229 | /** |
230 | * Determines whether the given ID is a nav menu item. |
231 | * |
232 | * @since 3.0.0 |
233 | * |
234 | * @param int $menu_item_id The ID of the potential nav menu item. |
235 | * @return bool Whether the given ID is that of a nav menu item. |