How to use a function as a class (object)?

Question

PHP

Hello.
How to use a function as a class?
I mean:
$locale = app()->getLocale();
How is it implemented and where can I find information on this issue? Thank you in advance.

Answer 1

the function simply returns an instance of the class, not a class. what is unclear here? there were PHP versions where such a call was generally prohibited.

Answer 2

class App {
    public function getLocale();
}

function app {
    return new App(); // в вашем примере тут синглтон
}

Use the transition to the definition in your IDE, or install PhpStorm if your development environment does not have such an opportunity to track where this function is declared
ps but in general, the approach is very so-so, there is both static and global state. I saw the global App in php only in the Yii framework, and they changed their minds and seem to cut it out in version 3 (if there is one, of course)