#hostingforum.kr
php

class Counter {

    private $count = 0;



    public function increment() {

        Threaded::synchronized(function () {

            $this->count++;

        });

        return $this->count;

    }

}



$counter = new Counter();



$thread1 = new class($counter) extends Threaded {

    private $counter;



    public function __construct(Counter $counter) {

        $this->counter = $counter;

    }



    public function run() {

        for ($i = 0; $i < 10000; $i++) {

            $this->counter->increment();

        }

    }

};



$thread2 = new class($counter) extends Threaded {

    private $counter;



    public function __construct(Counter $counter) {

        $this->counter = $counter;

    }



    public function run() {

        for ($i = 0; $i < 10000; $i++) {

            $this->counter->increment();

        }

    }

};



$thread1->start();

$thread2->start();



$thread1->join();

$thread2->join();



echo $counter->count; // 20000