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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 |
|---|---|
| 1738 | /** |
| 1739 | * Fires after a network option has been deleted. |
| 1740 | * |
| 1741 | * @since 3.0.0 |
| 1742 | * @since 4.7.0 The `$network_id` parameter was added. |
| 1743 | * |
| 1744 | * @param string $option Name of the network option. |
| 1745 | * @param int $network_id ID of the network. |
| 1746 | */ |
| 1747 | do_action( 'delete_site_option', $option, $network_id ); |
| 1748 | |
| 1749 | return true; |
| 1750 | } |
| 1751 | |
| 1752 | return false; |
| 1753 | } |
| 1754 | |
| 1755 | /** |
| 1756 | * Updates the value of a network option that was already added. |