File.io PHP File Upload up to 5GB

file.io.upload.php

<?php 

// Use composer 
// composer require guzzlehttp/guzzle:~6.0

require 'vendor/autoload.php';

use GuzzleHttp\Client;
$client = new Client();

$response = $client->request('POST', 'https://file.io', [
    'multipart' => [
        [
            'name'     => 'file',
            'contents' => fopen('file.png', 'r'),
            'filename' => basename('file.png')
        ],
    ]
]);

$res = json_decode($response->getBody());

if ($res->success) 
{
	echo "<h2>File has been uploaded</h2>";
	echo "Download <a href='$res->link'>Here</a>";
	echo $response->getBody();
}
else
{
	echo "Unexpected error";
}

// I'm working on a class for upload and set time expirations and more base on file.io service.