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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 |
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540 | } else { |
541 | wp_cache_set( $option, $_newvalue, 'options' ); |
542 | } |
543 | } |
544 |
|
545 | $result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) ); |
546 |
|
547 | if ( $result ) { |
548 | do_action( "update_option_{$option}", $oldvalue, $_newvalue ); |
549 | do_action( 'updated_option', $option, $oldvalue, $_newvalue ); |
550 | return true; |
551 | } |
552 | return false; |
553 | } |
554 |
|
555 | /** |
556 | * Add a new option. |
557 | * |
558 | * You do not need to serialize values. If the value needs to be serialized, then |