WordPress at a glance
function is not described

SimplePie_Cache_Redis::save() public WP 1.0

Save data to the cache

{} It's a method of the class: SimplePie_Cache_Redis{}

No Hooks.

Return

true|false. Successfulness

Usage

$SimplePie_Cache_Redis = new SimplePie_Cache_Redis();
$SimplePie_Cache_Redis->save( $data );
$data(array|SimplePie) (required)
Data to store in the cache. If passed a SimplePie object, only cache the $data property

Code of SimplePie_Cache_Redis::save() WP 5.7.2

<?php
public function save($data) {
    if ($data instanceof SimplePie) {
        $data = $data->data;
    }
    $response = $this->cache->set($this->name, serialize($data));
    if ($this->options['expire']) {
        $this->cache->expire($this->name, $this->options['expire']);
    }

    return $response;
}