Get user´s browser

<?php

function get_browser_name($user_agent)
      {
        if (strpos($user_agent, 'Opera') || strpos($user_agent, 'OPR/')) return 'Opera';
        elseif (strpos($user_agent, 'Edge')) return 'Edge';
        elseif (strpos($user_agent, 'Chrome')) return 'Chrome';
        elseif (strpos($user_agent, 'Safari')) return 'Safari';
        elseif (strpos($user_agent, 'Firefox')) return 'Firefox';
        elseif (strpos($user_agent, 'MSIE') || strpos($user_agent, 'Trident/7')) return 'Internet Explorer';
        return 'Other';
      }

      $browser = get_browser_name($_SERVER['HTTP_USER_AGENT']);