Title: WP_Feed_Cache_Transient::save
Published: April 25, 2014
Last modified: August 20, 2026

---

# WP_Feed_Cache_Transient::save( array|SimplePieSimplePie $data ): true

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#changelog)

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

Saves data to the transient.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#parameters)󠁿

 `$data`array|SimplePieSimplePierequired

Data to save. If passed a SimplePie object, only cache the `$data` property.

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

 true Always true.

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

    ```php
    public function save( $data ) {
    	if ( $data instanceof SimplePie\SimplePie ) {
    		$data = $data->data;
    	}

    	set_site_transient( $this->name, $data, $this->lifetime );
    	set_site_transient( $this->mod_name, time(), $this->lifetime );
    	return true;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-feed-cache-transient.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/class-wp-feed-cache-transient.php#L83)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-feed-cache-transient.php#L83-L91)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_feed_cache_transient/save/?output_format=md#related)󠁿

| Uses | Description | 
| [set_site_transient()](https://developer.wordpress.org/reference/functions/set_site_transient/)`wp-includes/option.php` |

Sets/updates the value of a site transient.

  |

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

| Version | Description | 
| [2.8.0](https://developer.wordpress.org/reference/since/2.8.0/) | Introduced. |

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