PHP获取客户端操作系统信息

/*
* PHP获取客户端操作系统信息
*/
function get_os(){
$agent = $_SERVER['HTTP_USER_AGENT'];
$os = false;
if (preg_match('/win/i', $agent) && strpos($agent, '95'))
{
$os = 'Windows 95';
}
else if (preg_match('/win 9x/i', $agent) && strpos($agent, '4.90'))
{
$os = 'Windows ME';
}
else if (preg_match('/win/i', $agent) && preg_match('/98/i', $agent))
{
$os = 'Windows 98';
}
else if (preg_match('/win/i', $agent) && preg_match('/nt 6.0/i', $agent))
{
$os = 'Windows Vista';
}
else if (preg_match('/win/i', $agent) && preg_match('/nt 6.1/i', $agent))
{
$os = 'Windows 7';
}
else if (preg_match('/win/i', $agent) && preg_match('/nt 6.2/i', $agent))
{
$os = 'Windows 8';
}else if(preg_match('/win/i', $agent) && preg_match('/nt 10.0/i', $agent))
{
$os = 'Windows 10';#添加win10判断
}else if (preg_match('/win/i', $agent) && preg_match('/nt 5.1/i', $agent))
{
$os = 'Windows XP';
}
else if (preg_match('/win/i', $agent) && preg_match('/nt 5/i', $agent))
{
$os = 'Windows 2000';
}
else if (preg_match('/win/i', $agent) && preg_match('/nt/i', $agent))
{
$os = 'Windows NT';
}
else if (preg_match('/win/i', $agent) && preg_match('/32/i', $agent))
{
$os = 'Windows 32';
}
else if (preg_match('/linux/i', $agent))
{
$os = 'Linux';
}
else if (preg_match('/unix/i', $agent))
{
$os = 'Unix';
}
else if (preg_match('/sun/i', $agent) && preg_match('/os/i', $agent))
{
$os = 'SunOS';
}
else if (preg_match('/ibm/i', $agent) && preg_match('/os/i', $agent))
{
$os = 'IBM OS/2';
}
else if (preg_match('/Mac/i', $agent) && preg_match('/PC/i', $agent))
{
$os = 'Macintosh';
}
else if (preg_match('/PowerPC/i', $agent))
{
$os = 'PowerPC';
}
else if (preg_match('/AIX/i', $agent))
{
$os = 'AIX';
}
else if (preg_match('/HPUX/i', $agent))
{
$os = 'HPUX';
}
else if (preg_match('/NetBSD/i', $agent))
{
$os = 'NetBSD';
}
else if (preg_match('/BSD/i', $agent))
{
$os = 'BSD';
}
else if (preg_match('/OSF1/i', $agent))
{
$os = 'OSF1';
}
else if (preg_match('/IRIX/i', $agent))
{
$os = 'IRIX';
}
else if (preg_match('/FreeBSD/i', $agent))
{
$os = 'FreeBSD';
}
else if (preg_match('/teleport/i', $agent))
{
$os = 'teleport';
}
else if (preg_match('/flashget/i', $agent))
{
$os = 'flashget';
}
else if (preg_match('/webzip/i', $agent))
{
$os = 'webzip';
}
else if (preg_match('/offline/i', $agent))
{
$os = 'offline';
}
else
{
$os = '未知操作系统';
// $os = get_device_type();
}
return $os;
}


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