SimplePie::__construct
The SimplePie class contains feed level data and options
To use SimplePie, create the SimplePie object with no parameters. You can then set configuration options using the provided methods. After setting them, you must initialise the feed using $feed->init(). At that point the object's methods and properties will be available to you. Previously, it was possible to pass in the feed URL along with cache options directly into the constructor. This has been removed as of 1.3 as it caused a lot of confusion.
Signature
public function __construct()