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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 |
|---|---|
| 399 | * |
| 400 | * The dynamic portion of the hook name, `$option`, refers to the user option name. |
| 401 | * |
| 402 | * @since 2.5.0 |
| 403 | * |
| 404 | * @param mixed $result Value for the user's option. |
| 405 | * @param string $option Name of the option being retrieved. |
| 406 | * @param WP_User $user WP_User object of the user whose option is being retrieved. |
| 407 | */ |
| 408 | return apply_filters( "get_user_option_{$option}", $result, $option, $user ); |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * Update user option with global blog capability. |
| 413 | * |
| 414 | * User options are just like user metadata except that they have support for |
| 415 | * global blog options. If the 'global' parameter is false, which it is by default |
| 416 | * it will prepend the WordPress table prefix to the option name. |
| 417 | * |