How to initialize static variables?

I want to make a static class which can use GuzzleHttp client fetch data. I searched a solution on StackOverflow http://stackoverflow.com/a/693799

class Demo
{
    static private $client;
    public static function init()
    {
        self::$client = new Client();
    }
...
}
Demo::init();

It works and odd! Is there elegant way ?

tomopongrac

9 years ago

Level 51

I would set contructor private so it is impossible to instantiate the class

class Demo
{
    static private $client;

    private function __construct() {}

    public static function init()
    {
        self::$client = new Client();
    }
...
}
Demo::init();

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