WordPress at a glance
function is not described

SimplePie_Cache_Memcached::mtime() public WP 1.0

Retrieve the last modified time for the cache

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

No Hooks.

Return

Int. Timestamp

Usage

$SimplePie_Cache_Memcached = new SimplePie_Cache_Memcached();
$SimplePie_Cache_Memcached->mtime();

Code of SimplePie_Cache_Memcached::mtime() WP 5.7.2

<?php
public function mtime() {
    $data = $this->cache->get($this->name . '_mtime');
    return (int) $data;
}