Multi-threading in PHP applications

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There is some Pattern design to perform the execution of multiple processes and the collection of results in it?

Scenario: I have a large volume of data (> 200000 entries), have to perform recursive checks on them and also reduce the elapsed runtime (and of course without causing timeout). What would be the best solution?

Is multi-threading an option? There is a realistic way to implement a multi-threaded model in PHP?

php multithreading
  • 5

    if the data volume is large. Isn’t it better to work them out of the request and notify the user when their processing is completed? An example is facebook when you send a video, it releases the user and when the video is just processed it sends a notification.

  • I could create an API and batch process as well, but the main question is still about the use/existence of multithreading.

  • @Darleifernandozillmer found an article that can help you https://stackoverflow.com/questions/70855/how-can-one-use-multi-threading-in-php-applications. I hope there’s a good answer and on a pattern maybe Rxphp can help: https://github.com/ReactiveX/RxPHP

  • I came to find this question and I’m testing something around pthreads now, but I’ll take a look at Rxphp as well

  • 1

    Take a look at Parallel (php.net,packagist). He has more community support.

1 answer

6


Multi-threading is possible in php

Yes you can do multi-threading in PHP with pthreads.

Of PHP documentation:

pthreads is an object-oriented API that provides all the tools needed for multi-threading in PHP. PHP applications can create, read, write, run and synchronize with Threads, Workers and Threaded objects.

Warning : The pthreads extension cannot be used in a web server environment. PHP threading should therefore remain for CLI-based applications only.

<?php
class OperacaoAssincrona extends Thread {

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

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

// Criar um array
$stack = array();

//Inicializando multiplas Thread
foreach ( range("A", "D") as $i ) {
    $stack[] = new OperacaoAssincrona($i);
}

// iniciar a Threads
foreach ( $stack as $t ) {
    $t->start();
}

?>

First execution

12:00:06pm:     A  -start -sleeps 5
12:00:06pm:     B  -start -sleeps 3
12:00:06pm:     C  -start -sleeps 10
12:00:06pm:     D  -start -sleeps 2
12:00:08pm:     D  -finish
12:00:09pm:     B  -finish
12:00:11pm:     A  -finish
12:00:16pm:     C  -finish

Second Option

12:01:36pm:     A  -start -sleeps 6
12:01:36pm:     B  -start -sleeps 1
12:01:36pm:     C  -start -sleeps 2
12:01:36pm:     D  -start -sleeps 1
12:01:37pm:     B  -finish
12:01:37pm:     D  -finish
12:01:38pm:     C  -finish
12:01:42pm:     A  -finish

This is a model of how to use Multi-threading.

But a very good Pattern designer is Rxphp I think it’s worth taking a look.

Response reference: How can one use multi threading in PHP Applications

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