<?php

require (dirname(__DIR__).'/vendor/autoload.php');

use Parallel\Parallel;
use Parallel\Storage\ApcuStorage;

// EXAMPLE, how to run parallel 3 operations.

// Using Parallel via ApcuStorage (APCu, see http://php.net/manual/ru/book.apcu.php)
$Parallel = new Parallel(new ApcuStorage());

// if you have not APCu, you can use Memcached or Redis as Storage.
// Note: you can't store objects in Memcached or Redis and you can't store binary strings (use <base64> functions)

//    $Parallel = new Parallel(new \Parallel\Storage\MemcachedStorage([
//        'servers' => [['127.0.0.1', 11211]]
//    ]));

//    $Parallel = new Parallel(new \Parallel\Storage\RedisStorage([
//        'server' => 'tcp://127.0.0.1:6379'
//    ]));

$time = microtime(true);

// 1st operation
$Parallel->run('foo', function() {
    // You can use Parallel inside run function by creating new objects Parallel.
    // Example: $Parallel = new Parallel(new \Parallel\Storage\ApcuStorage());
    sleep(2);
    return ['hello' => 'world'];
});

// 2nd operation
$Parallel->run('obj', function() {
    sleep(2);
    return (object) ['a' => 1, 'b' => 2, 'c' => 3];
});

// 3th operation
// do some thing ...
sleep(2);

// waiting for <foo> and <obj> and get results.
// use wait() without parameters for wait all forks. Example: $Parallel->wait();
$result = $Parallel->wait(['foo', 'obj']);

print_r($result);
print_r(microtime(true) - $time);
// 3 parallel operations by 2 seconds take about 2 seconds, instead 6 seconds.

//    Array
//    (
//        [foo] => Array
//            (
//                [hello] => world
//            )
//
//        [obj] => stdClass Object
//            (
//                [a] => 1
//                [b] => 2
//                [c] => 3
//            )
//    )
//    2.0130307674408