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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 |
---|---|
828 |
|
829 | $_value = $value; |
830 | $value = maybe_serialize( $value ); |
831 | $result = $wpdb->insert( $wpdb->sitemeta, array('site_id' => $wpdb->siteid, 'meta_key' => $option, 'meta_value' => $value ) ); |
832 | $value = $_value; |
833 | } |
834 |
|
835 | if ( $result ) { |
836 | do_action( "add_site_option_{$option}", $option, $value ); |
837 | do_action( "add_site_option", $option, $value ); |
838 | return true; |
839 | } |
840 | return false; |
841 | } |
842 |
|
843 | /** |
844 | * Removes site option by name. |
845 | * |
846 | * @see delete_option() |