AmpPHP 非阻塞并發(fā)框架

Amp 是一個(gè) PHP 非阻塞并發(fā)框架，它提供了一個(gè)事件循環(huán)，promise 和 stream 作為異步編程的基礎(chǔ)。與生成器結(jié)合使用的 promise 用于構(gòu)建協(xié)程，它允許像同步代碼一樣編寫(xiě)異步代碼，而不需要任何回調(diào)。

demo：

<?php

use Amp\Artax\Response;
use Amp\Loop;

require __DIR__ . '/../vendor/autoload.php';

Loop::run(function () {
    $uris = [
        "https://google.com/",
        "https://github.com/",
        "https://stackoverflow.com/",
    ];

    $client = new Amp\Artax\DefaultClient;
    $client->setOption(Amp\Artax\Client::OP_DISCARD_BODY, true);

    try {
        foreach ($uris as $uri) {
            $promises[$uri] = $client->request($uri);
        }

        $responses = yield $promises;

        foreach ($responses as $uri => $response) {
            print $uri . " - " . $response->getStatus() . $response->getReason() . PHP_EOL;
        }
    } catch (Amp\Artax\HttpException $error) {
        // If something goes wrong Amp will throw the exception where the promise was yielded.
        // The Client::request() method itself will never throw directly, but returns a promise.
        print $error->getMessage() . PHP_EOL;
    }
});