<?php
    class SleepThread extends Thread
    {
        public $hit = false;

        public function __construct($nap, $n)
        {
            $this->nap = $nap;
            $this->thread_no = $n;
        }

        public function run()
        {
            while (1)
            {
                $r = mt_rand(0, 9);
                echo $r . " \tdrawn in thread " . $this->thread_no . "\n";
                if ($r == 9)
                {
                    $this->hit = true;
                }
                if ($this->hit)
                {
                    $this->synchronized
                    (
                        function ()
                        {
                            $job = new stdClass;
                            $job->message = "Test\n";
                            echo "*CHILD:\tHit... \n";
                            $this->result = 'Found in thread ' .  $this->thread_no . ' at ' . time() . ".  You're a thread master...";
                            echo "*CHILD:\tWaiting for parent thread ... \n";
                            $time = microtime();
                            $this->wait();
                            echo "*CHILD:\tDone waiting after " . (microtime() - $time) . " seconds\n";
                            $this->hit = false;
                            echo "*CHILD:\tChild " . $this->thread_no . " taking a long nap...\n";
                            sleep(3 * $this->nap);
                            echo "*CHILD:\tChild thread continuing. Thread number is:  " . $this->thread_no . "...\n";
                        }
                    );
                }
                sleep($this->nap);
            }
        }
    }

    $thread[0] = new SleepThread(5, "0");
    $thread[1] = new SleepThread(5, "1");
    $thread[2] = new SleepThread(5, "2");
    foreach ($thread as $job)
    {
        $job->start();
    }

    while (1)
    {
        sleep(1);
        foreach ($thread as $job)
        {
            if ($job->hit)
            {
                echo ("PARENT:\tDetected a hit in thread " . $job->thread_no . "\n");
                $job->synchronized
                (
                    function ($job)
                    {
                        echo "PARENT:\tNotifying child thread that we are ready for its result.\n";
                        $job->notify();
                        echo "PARENT:\t" . $job->result . "  <----That's the result.\n";
                        // echo "PARENT:  " . $job->obj->message . "^^^Getting object created in child thread oesn't work for some rasons^^^.\n";
                    },
                    $job
                );
            }
        }
    }
/*
3       drawn in thread 0
3       drawn in thread 1
0       drawn in thread 2
0       drawn in thread 0
0       drawn in thread 1
9       drawn in thread 2
*CHILD: Hit...
*CHILD: Waiting for parent thread ...
PARENT: Detected a hit in thread 2
PARENT: Notifying child thread that we are ready for its result.
PARENT: Found in thread 2 at 1542168674.  You're a thread master...  <----That's the result.
*CHILD: Done waiting after 0.00082700000000002 seconds
*CHILD: Child 2 taking a long nap...
8       drawn in thread 0
0       drawn in thread 1
5       drawn in thread 0
9       drawn in thread 1
*CHILD: Hit...
*CHILD: Waiting for parent thread ...
4       drawn in thread 0
*CHILD: Child thread continuing. Thread number is:  2...
PARENT: Detected a hit in thread 1
PARENT: Notifying child thread that we are ready for its result.
PARENT: Found in thread 1 at 1542168684.  You're a thread master...  <----That's the result.
*CHILD: Done waiting after 0.004718 seconds
*CHILD: Child 1 taking a long nap...
6       drawn in thread 0
7       drawn in thread 2
2       drawn in thread 0
5       drawn in thread 2
3       drawn in thread 0
2       drawn in thread 2
*CHILD: Child thread continuing. Thread number is:  1...
1       drawn in thread 0
5       drawn in thread 2
5       drawn in thread 1

*/
?>