How to create a global variable that works between the same classes?

Question

PHP

<?php

$arraw=array("Start");
class AsyncOperation extends Thread {

    public function __construct($arg) {
        $this->arg = $arg;
    }

    public function run() {
  global $arraw;
        if ($this->arg) {
            $sleep = mt_rand(1, 10);
            printf('%s: %s  -start -sleeps %d' . "\n", date("g:i:sa"), $this->arg, $sleep);
            sleep($sleep);
      $arraw[]=$this->arg;
            printf('%s: %s  -finish' . "\n", date("g:i:sa"), $this->arg);
        }
    }
}

// Create a array
$stack = array();

//Initiate Multiple Thread
foreach ( range("A", "D") as $i ) {
    $stack[] = new AsyncOperation($i);
}

// Start The Threads
foreach ( $stack as $t ) {
    $t->start();
}

?>

How to do something like this? so that the generated classes can access and rewrite the same array

Answer 1

I found the answer myself with a subclass and volatility
https://www.sitepoint.com/parallel-programming-pth...
https://www.php.net/manual/en/class.volatile.php

Answer 2

You should read up on inheritance and properties .
As a solution, I propose to create a parent class for such classes and store your $arraw as a property in it.
Or you can somehow "smart" with constructors, and pass this array from class to class via __construct() .
Pass Create $arraw to ClassOne(), then pass ClassTwo(['arraw' => $classOneObject->arraw]) from there to class 3,4,5 and so on.

Answer 3

A static variable in a class is shared by all objects of that class.
Example

class A {
    public function foo() {
        static $x = 0;
        echo ++$x;
    }
}
$a1 = new A();
$a2 = new A();
$a1->foo();
$a2->foo();
$a1->foo();
$a2->foo();

Output: 1234