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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 |
---|---|
549 | wp_cache_set( 'alloptions', $alloptions, 'options' ); |
550 | } else { |
551 | wp_cache_set( $option, $_newvalue, 'options' ); |
552 | } |
553 | } |
554 |
|
555 | $result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) ); |
556 |
|
557 | if ( $result ) { |
558 | do_action( "update_option_{$option}", $oldvalue, $_newvalue ); |
559 | do_action( 'updated_option', $option, $oldvalue, $_newvalue ); |
560 | return true; |
561 | } |
562 | return false; |
563 | } |
564 |
|
565 | /** |
566 | * Add a new option. |
567 | * |