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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 |
|---|---|
| 580 | * Filters a user's capabilities depending on specific context and/or privilege. |
| 581 | * |
| 582 | * @since 2.8.0 |
| 583 | * |
| 584 | * @param array $caps Returns the user's actual capabilities. |
| 585 | * @param string $cap Capability name. |
| 586 | * @param int $user_id The user ID. |
| 587 | * @param array $args Adds the context to the cap. Typically the object ID. |
| 588 | */ |
| 589 | return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args ); |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Whether the current user has a specific capability. |
| 594 | * |
| 595 | * While checking against particular roles in place of a capability is supported |
| 596 | * in part, this practice is discouraged as it may produce unreliable results. |
| 597 | * |
| 598 | * Note: Will always return true if the current user is a super admin, unless specifically denied. |