Description

When using Redis Cache there is no way to set redis cache expiry.
Url params are not taken into account

Steps to Reproduce

Steps to reproduce the behavior:

$remoteFeed = new SimplePie();
$remoteFeed->set_cache_location('redis://localhost:6379/?timeout=3600&prefix=sp_&dbIndex=0');
$remoteFeed->set_cache_duration(3601);
$remoteFeed->set_feed_url('any url');
$remoteFeed->init();

Expected Behavior

TTL of redis key not -1

Actual Behavior

TTL of redis key is -1

Possible Solutions

Environment

dev-master
php-redis on linux mint, php 7.3