Can i call own class in php?

Question

I don't want to use new in my calling php document. I just want to call static method.

For example my class is:

class MergeCaching{

    public static function writeList(){
        $write = new MergeCaching();   // I want to use new here
        $write->getListFromRu();
    }

    public function getListFromRu(){
       print_r('Example');
    }
}

My calling php document like this:

MergeCaching::writeList();

It works but can I use like this?

Maybe this article can help you: http://stackoverflow.com/questions/2365458/php-how-can-i-access-use-a-method-within-its-own-class. — node_modules, Jun 29 '16 at 07:31
Make `getListFromRU` static and then you can it call with `self::getListFromRu()` — DarkBee, Jun 29 '16 at 07:57
Are you sure you want static? Do you know why you need that? — B001ᛦ, Jun 29 '16 at 07:58
You might want to read this [New self vs. new static](http://stackoverflow.com/questions/5197300/new-self-vs-new-static) — postrel, Jun 29 '16 at 08:31

postrel · Accepted Answer · 2016-06-29T08:14:12.897

0

If your question is about instantiating a class in its context you could do it using new self:

public static function writeList(){
    $write = new self;
    $write->getListFromRu();
}

Documentation

edited Jun 29 '16 at 08:14

answered Jun 29 '16 at 07:54

postrel

134
8

1

`new self`? Is that a thing?? – node_modules Jun 29 '16 at 07:57
1

OP's question is about `not` instantiating a class – DarkBee Jun 29 '16 at 07:58
@C0dekid Yes it is, `new static()` can be used as well – DarkBee Jun 29 '16 at 07:58
Haha learned something new then. I was reading about it now, thanks @deceze ^^. – node_modules Jun 29 '16 at 07:58
@DarkBee What is it about then? – postrel Jun 29 '16 at 07:59
About calling a static method inside a class – DarkBee Jun 29 '16 at 08:01
2

@DarkBee `getListFromRu()` is not a static method – postrel Jun 29 '16 at 08:02
@deceze new static is only useful for the late static bindings, the OP's class does not extend any other class, so new static is pointless here. – postrel Jun 29 '16 at 08:20
@postrel It's useful to keep your class open to extensions. Using `static` allows you to `extend` your class and benefit from late static binding in *that* class. – deceze Jun 29 '16 at 08:22
@user5510975 you are welcome. You could extend your question to explain why you need to call `getListFromRu()` from an object context and not from a class context. My guess is that there's some business logic in the class constructor. You should really make that clear in your question. That could have avoided all the downvotes. – postrel Jun 29 '16 at 10:00

Can i call own class in php?

1 Answers1