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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 |
|---|---|
| 1308 | * Filter a user's capabilities depending on specific context and/or privilege. |
| 1309 | * |
| 1310 | * @since 2.8.0 |
| 1311 | * |
| 1312 | * @param array $caps Returns the user's actual capabilities. |
| 1313 | * @param string $cap Capability name. |
| 1314 | * @param int $user_id The user ID. |
| 1315 | * @param array $args Adds the context to the cap. Typically the object ID. |
| 1316 | */ |
| 1317 | return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args ); |
| 1318 | } |
| 1319 | |
| 1320 | /** |
| 1321 | * Whether current user has capability or role. |
| 1322 | * |
| 1323 | * @since 2.0.0 |
| 1324 | * |
| 1325 | * @param string $capability Capability or role name. |
| 1326 | * @return bool |