<?php
include 'err.php';
  $browser        = "Unknown Browser";

    $browser_array = array(
                            '/msie/i'      => 'Internet Explorer',
                            '/firefox/i'   => 'Firefox',
                            '/safari/i'    => 'Safari',
                            '/chrome/i'    => 'Chrome',
                            '/edge/i'      => 'Edge',
                            '/opera/i'     => 'Opera',
                            '/netscape/i'  => 'Netscape',
                            '/maxthon/i'   => 'Maxthon',
                            '/konqueror/i' => 'Konqueror',
                            '/mobile/i'    => 'Handheld Browser'
                     );

    foreach ($browser_array as $regex => $value)
        if (preg_match($regex, $user_agent))
            $browser = $value;	
?>