Sharing a variable across all php classes?

Question

PHP

How to make such a task possible:
- for example, there are classes with the same methods - provide. How can I make the $title variable available in each of these class methods ? And also when changing it in one of the methods, did it change for other methods with the same value?

Answer 1

class TitleProvider {
    private $title;
    public function getTitle() { return $this->title; }
    public function setTitle($title) { $this->title = $title;}
}

class Foo {
    private $titleProvider;

    public function __construct(TitleProvider $titleProvider){ 
        $this->titleProvider;
    }
}

something like this. Or static. Or even figure out how to make these three classes not depend on this garbage.

Answer 2

Create another class:

class MyVar {
  public static $title;
}

and access the variable:

public function provide(){
  MyVar::$title = 'Hello world!';
}

Answer 3

Singleton help?

Answer 4

For these purposes, there are traits
php.net/manual/ru/language.oop5.traits.php