Guzzle is a PHP HTTP client that makes it easy to work with HTTP/1.1 and takes the pain out of consuming web services.

$client = new GuzzleHttp\Client();
$response = $client->get('http://guzzlephp.org');
$res = $client->get('https://api.github.com/user', ['auth' =>  ['user', 'pass']]);
echo $res->getStatusCode();
// 200
echo $res->getHeader('content-type');
// 'application/json; charset=utf8'
echo $res->getBody();
// {"type":"User"...'
var_export($res->json());
// Outputs the JSON decoded data

• Pluggable HTTP adapters that can send requests serially or in parallel
• Doesn't require cURL, but uses cURL by default
• Streams data for both uploads and downloads
• Provides event hooks & plugins for cookies, caching, logging, OAuth, mocks, etc...
• Keep-Alive & connection pooling
• SSL Verification
• Automatic decompression of response bodies
• Streaming multipart file uploads
• Connection timeouts

Get more information and answers with the Documentation, Forums, and IRC (#guzzlephp @ irc.freenode.net).

The recommended way to install Guzzle is through Composer.

# Install Composer
curl -sS https://getcomposer.org/installer | php

Next, update your project's composer.json file to include Guzzle:

{
    "require": {
        "guzzlehttp/guzzle": "4.0.0-rc.1"
    }
}

After installing, you need to require Composer's autoloader:

require 'vendor/autoload.php';

More information can be found in the online documentation at http://guzzlephp.org/.