# double-opt-in/5.5.0/src/EventSystem/StoppableEventInterface.php

Double Opt-In for Contact Form 7 – Secure, GDPR-Compliant Email Verification, version 5.5.0. 29 lines.

- Page: https://pluginprobe.com/plugins/double-opt-in/5.5.0/code/src/EventSystem/StoppableEventInterface.php
- Raw: https://pluginprobe.com/plugins/double-opt-in/5.5.0/raw/src/EventSystem/StoppableEventInterface.php
- Modified: 2026-01-29T14:02:52+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/double-opt-in/5.5.0/code/src/EventSystem/StoppableEventInterface.php#L10-L20`.

```php
<?php
/**
 * Stoppable Event Interface
 *
 * @package Forge12\DoubleOptIn\EventSystem
 * @since   4.0.0
 */

namespace Forge12\DoubleOptIn\EventSystem;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Interface StoppableEventInterface
 *
 * An Event whose processing may be interrupted when the event has been handled.
 */
interface StoppableEventInterface {

	/**
	 * Is propagation stopped?
	 *
	 * @return bool True if the Event is complete and no further listeners should be called.
	 */
	public function isPropagationStopped(): bool;
}

```