Source View: update_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
310       * Fires after the value of a specific option has been successfully updated.
311       *
312       * The dynamic portion of the hook name, $option, refers to the option name.
313       *
314       * @since 2.0.1
315       *
316       * @param mixed $old_value The old option value.
317       * @param mixed $value     The new option value.
318       */
319      do_action( "update_option_{$option}", $old_value, $value );
320
321      /**
322       * Fires after the value of an option has been successfully updated.
323       *
324       * @since 2.9.0
325       *
326       * @param string $option    Name of the updated option.
327       * @param mixed  $old_value The old option value.
328       * @param mixed  $value     The new option value.