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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 |
|---|---|
| 4004 | $result = add_site_option( $transient, $value ); |
| 4005 | } else { |
| 4006 | if ( $expiration ) |
| 4007 | update_site_option( $transient_timeout, time() + $expiration ); |
| 4008 | $result = update_site_option( $transient, $value ); |
| 4009 | } |
| 4010 | } |
| 4011 | if ( $result ) { |
| 4012 | do_action( 'set_site_transient_' . $transient ); |
| 4013 | do_action( 'setted_site_transient', $transient ); |
| 4014 | } |
| 4015 | return $result; |
| 4016 | } |
| 4017 | |
| 4018 | /** |
| 4019 | * is main site |
| 4020 | * |
| 4021 | * |
| 4022 | * @since 3.0.0 |