How to use React with PHP programming?

React is a JavaScript library created and maintained by the Facebook team, mainly used for building user interfaces. With the widespread application of React in front-end development, more and more developers are beginning to use React in the back-end. This article will introduce how to use React with PHP programming.

1. Install React

To use React in PHP, you need to install React's dependency packages first. It can be installed using Composer, a package manager in PHP similar to npm.

Open the terminal in the project directory and enter the following command to install:

composer require react/react

After the installation is completed, a vendor directory will appear in the project directory, which contains React-related dependencies.

2. Create React applications

Using React in PHP is mainly achieved through ReactPHP. ReactPHP is an event-driven non-blocking I/O framework that can implement asynchronous in PHP programming.

First create a PHP file, such as index.php. Introduce ReactPHP's autoloader into the file and use the following code:

require 'vendor/autoload.php';

Then create an HttpServer to process HTTP requests and return responses.

$loop = ReactEventLoopFactory::create();
$socket = new ReactSocketServer('127.0.0.1:8000', $loop);
$http = new ReactHttpServer($socket, $loop);

Next, create a ReactPHP router and add a route processor:

$router = new ReactHttpRouterRouter($http);
$router->get('/', function (ServerRequestInterface $request) {
  return new Response(200, array('Content-Type' => 'text/plain'), "Hello ReactPHP!");
});

Finally, start the server and listen for requests:

$loop->run();

Run the above code, and then Open http://localhost:8000 in the browser, and you can see the "Hello ReactPHP!" response.

3. Using React components in PHP

React allows you to create reusable components, which is the core concept of React. React components can also be used in PHP.

First, create a React component and save it as a PHP file, such as Hello.php. The code to create a Hello component and output "Hello, World!" is as follows:

<?php

use ReactReactComponent;

class Hello extends ReactComponent {
  private $name;

  public function __construct(string $name) {
    parent::__construct();
    $this->name = $name;
  }

  protected function render() {
    return "<div>Hello, {$this->name}!</div>";
  }
}

You can introduce the Hello component in the index.php file and use:

$hello = new Hello('React');
echo $hello->render();

Run the above code and you will see The result of outputting "Hello, React!"

4. Conclusion

React is a JavaScript library widely used in the front-end. With the emergence of ReactPHP, React can now be used in the back-end PHP for asynchronous programming and componentization. development. This article explains how to use React with PHP programming. Hope this article is helpful to you, have a Good Day!

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