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
402       * The dynamic portion of the hook name, `$option`, refers to the option name.
403       *
404       * @since 2.0.1
405       * @since 4.4.0 The `$option` parameter was added.
406       *
407       * @param mixed  $old_value The old option value.
408       * @param mixed  $value     The new option value.
409       * @param string $option    Option name.
410       */
411      do_action( "update_option_{$option}", $old_value, $value, $option );
412
413      /**
414       * Fires after the value of an option has been successfully updated.
415       *
416       * @since 2.9.0
417       *
418       * @param string $option    Name of the updated option.
419       * @param mixed  $old_value The old option value.
420       * @param mixed  $value     The new option value.