Source View: add_option_{$option}

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
629      $notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh
630      if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
631           unset( $notoptions[$option] );
632           wp_cache_set( 'notoptions', $notoptions, 'options' );
633      }
634
635      $result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $value, $autoload ) );
636
637      if ( $result ) {
638           do_action( "add_option_{$option}", $option, $_value );
639           do_action( 'added_option', $option, $_value );
640           return true;
641      }
642      return false;
643 }
644
645 /**
646  * Removes option by name. Prevents removal of protected WordPress options.
647  *