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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 |
|---|---|
| 1433 | * |
| 1434 | * @since 2.9.0 As "add_site_option_{$key}" |
| 1435 | * @since 3.0.0 |
| 1436 | * @since 4.7.0 The `$network_id` parameter was added. |
| 1437 | * |
| 1438 | * @param string $option Name of the network option. |
| 1439 | * @param mixed $value Value of the network option. |
| 1440 | * @param int $network_id ID of the network. |
| 1441 | */ |
| 1442 | do_action( "add_site_option_{$option}", $option, $value, $network_id ); |
| 1443 | |
| 1444 | /** |
| 1445 | * Fires after a network option has been successfully added. |
| 1446 | * |
| 1447 | * @since 3.0.0 |
| 1448 | * @since 4.7.0 The `$network_id` parameter was added. |
| 1449 | * |
| 1450 | * @param string $option Name of the network option. |
| 1451 | * @param mixed $value Value of the network option. |