in PHP (composer require woothee/woothee:*)
<?php
include __DIR__ . '/vendor/autoload.php';
$classifier = \Woothee\Classifier;
$classifier->parse('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)');
// => ['name' => 'Internet Explorer', 'category' => 'pc', 'os' => 'Windows 7', 'version' => '8.0', 'vendor' => 'Microsoft']