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
392       * The dynamic portion of the hook name, `$option`, refers to the option name.
393       *
394       * @since 2.0.1
395       * @since 4.4.0 The `$option` parameter was added.
396       *
397       * @param mixed  $old_value The old option value.
398       * @param mixed  $value     The new option value.
399       * @param string $option    Option name.
400       */
401      do_action( "update_option_{$option}", $old_value, $value, $option );
402
403      /**
404       * Fires after the value of an option has been successfully updated.
405       *
406       * @since 2.9.0
407       *
408       * @param string $option    Name of the updated option.
409       * @param mixed  $old_value The old option value.
410       * @param mixed  $value     The new option value.