より具体的にしたい場合は、試すことができます。
function getBrowser()
{
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$bname = 'Unknown';
$platform = 'Unknown';
$version= "";
if (preg_match('/linux/i', $u_agent))
{
$platform = 'linux';
}
elseif (preg_match('/macintosh|mac os x/i', $u_agent))
{
$platform = 'mac';
}
elseif (preg_match('/windows|win32/i', $u_agent))
{
$platform = 'windows';
}
if(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent))
{
$bname = 'Internet Explorer';
$ub = "MSIE";
}
elseif(preg_match('/Firefox/i',$u_agent))
{
$bname = 'Mozilla Firefox';
$ub = "Firefox";
}
elseif(preg_match('/Chrome/i',$u_agent))
{
$bname = 'Google Chrome';
$ub = "Chrome";
}
elseif(preg_match('/Safari/i',$u_agent))
{
$bname = 'Apple Safari';
$ub = "Safari";
}
elseif(preg_match('/Opera/i',$u_agent))
{
$bname = 'Opera';
$ub = "Opera";
}
elseif(preg_match('/Netscape/i',$u_agent))
{
$bname = 'Netscape';
$ub = "Netscape";
}
$known = array('Version', $ub, 'other');
$pattern = '#(?' . join('|', $known) .')[/ ]+(?[0-9.|a-zA-Z.]*)#';
if (!preg_match_all($pattern, $u_agent, $matches))
{
}
$i = count($matches['browser']);
if ($i != 1)
{
if (strripos($u_agent,"Version") $u_agent,
'name' => $bname,
'version' => $version,
'platform' => $platform,
'pattern' => $pattern
);
}