John Davidson

Message:

I'm sending a request to another API using guzzle and returning a json from the API I'm requesting. However, I have an array and I send requests to the relevant API by returning one by one in this array, which increases the response time, so I need to run it in parallel. How can I do this with PHP?

---

My Answer:
You can achieve asynchronous processing in PHP using libraries like ReactPHP or Amp. These libraries allow you to run multiple tasks concurrently without blocking the main thread.

Here's an example using ReactPHP:

1. Install ReactPHP using Composer:

composer require react/event-loop react/promise guzzlehttp/guzzle


2. Create a script that sends requests asynchronously:
php
require 'vendor/autoload.php';

use React\EventLoop\Factory;
use GuzzleHttp\Client;

$loop = Factory::create();
$client = new Client();

$urls = ['http://example.com/api1', 'http://example.com/api2', 'http://example.com/api3'];

$promises = [];
foreach ($urls as $url) {
$promises[] = $client->getAsync($url);
}

\React\Promise\all($promises)->then(function($responses) {
foreach ($responses as $response) {
echo $response->getBody() . PHP_EOL;
}
});

$loop->run();


In this script, we create an event loop using ReactPHP, send asynchronous requests to multiple URLs using Guzzle, and then wait for all the responses to be completed before processing them.

This will allow you to run multiple API requests in parallel, reducing the overall response time.