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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" )
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.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
1887 | * |
1888 | * @since 3.0.0 |
1889 | * @since 4.7.0 The `$network_id` parameter was added. |
1890 | * |
1891 | * @param string $option Name of the network option. |
1892 | * @param mixed $value Current value of the network option. |
1893 | * @param mixed $old_value Old value of the network option. |
1894 | * @param int $network_id ID of the network. |
1895 | */ |
1896 | do_action( 'update_site_option', $option, $value, $old_value, $network_id ); |
1897 |
|
1898 | return true; |
1899 | } |
1900 |
|
1901 | return false; |
1902 | } |
1903 |
|
1904 | /** |
1905 | * Deletes a site transient. |