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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 |
|---|---|
| 609 | * Filters a user's capabilities depending on specific context and/or privilege. |
| 610 | * |
| 611 | * @since 2.8.0 |
| 612 | * |
| 613 | * @param string[] $caps Array of the user's capabilities. |
| 614 | * @param string $cap Capability name. |
| 615 | * @param int $user_id The user ID. |
| 616 | * @param array $args Adds the context to the cap. Typically the object ID. |
| 617 | */ |
| 618 | return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args ); |
| 619 | } |
| 620 | |
| 621 | /** |
| 622 | * Returns whether the current user has the specified capability. |
| 623 | * |
| 624 | * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta |
| 625 | * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to |
| 626 | * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`. |
| 627 | * |