Title: AiClient::getCache
Published: May 20, 2026

---

# AiClient::getCache(): WordPressAiClientDependenciesPsrSimpleCacheCacheInterface|null

## In this article

 * [Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#source)
 * [Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#wp--skip-link--target)

Gets the PSR-16 cache instance.

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#return)󠁿

 WordPressAiClientDependenciesPsrSimpleCacheCacheInterface|null The cache instance,
or null if not set.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#source)󠁿

    ```php
    public static function getCache(): ?CacheInterface
    {
        return self::$cache;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/php-ai-client/src/aiclient.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/php-ai-client/src/AiClient.php#L162)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/php-ai-client/src/AiClient.php#L162-L165)

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wordpress-aiclient-aiclient/getcache/?output_format=md#changelog)󠁿

| Version | Description | 
| [0.4.0](https://developer.wordpress.org/reference/since/0.4.0/) | Introduced. |

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