PHP】获取客户端（浏览器）信息、获取客户端系统信息、获取服务器信息

* 获取客户端浏览器信息
* @param null
* @author https://blog.jjonline.cn/phptech/168.html
* @return string
*/
function get_broswer()
{
$sys = $_SERVER['HTTP_USER_AGENT']; //获取用户代理字符串
if (stripos($sys, "Firefox/") > 0) {
preg_match("/Firefox\/([^;)]+)+/i", $sys, $b);
$exp[0] = "Firefox";
$exp[1] = $b[1]; //获取火狐浏览器的版本号
} elseif (stripos($sys, "Maxthon") > 0) {
preg_match("/Maxthon\/([\d\.]+)/", $sys, $aoyou);
$exp[0] = "傲游";
$exp[1] = $aoyou[1];
} elseif (stripos($sys, "MSIE") > 0) {
preg_match("/MSIE\s+([^;)]+)+/i", $sys, $ie);
$exp[0] = "IE";
$exp[1] = $ie[1]; //获取IE的版本号
} elseif (stripos($sys, "OPR") > 0) {
preg_match("/OPR\/([\d\.]+)/", $sys, $opera);
$exp[0] = "Opera";
$exp[1] = $opera[1];
} elseif(stripos($sys, "Edge") > 0) {
//win10 Edge浏览器 添加了chrome内核标记 在判断Chrome之前匹配
preg_match("/Edge\/([\d\.]+)/", $sys, $Edge);
$exp[0] = "Edge";
$exp[1] = $Edge[1];
} elseif (stripos($sys, "Chrome") > 0) {
preg_match("/Chrome\/([\d\.]+)/", $sys, $google);
$exp[0] = "Chrome";
$exp[1] = $google[1]; //获取google chrome的版本号
} elseif(stripos($sys,'rv:')>0 && stripos($sys,'Gecko')>0){
preg_match("/rv:([\d\.]+)/", $sys, $IE);
$exp[0] = "IE";
$exp[1] = $IE[1];
}else {
$exp[0] = "未知浏览器";
$exp[1] = "";
}
return $exp[0].'('.$exp[1].')';
}
二、获取客户端系统信息www.cdxsxbx.com

/**
* 获取客户端操作系统信息,包括win10
* @param null
* @author https://blog.jjonline.cn/phptech/168.html
* @return string
*/
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';
}
return $os;
}
三、获取服务器基本信息

public function osinfo()
{
$info = array(
'操作系统' => PHP_OS,
'运行环境' => $_SERVER["SERVER_SOFTWARE"],
'主机名' => $_SERVER['SERVER_NAME'],
'WEB服务端口' => $_SERVER['SERVER_PORT'],
'网站文档目录' => $_SERVER["DOCUMENT_ROOT"],
'浏览器信息' => substr($_SERVER['HTTP_USER_AGENT'], 0, 40),
'通信协议' => $_SERVER['SERVER_PROTOCOL'],
'请求方法' => $_SERVER['REQUEST_METHOD'],
// 'ThinkPHP版本'=>THINK_VERSION,
'PHP版本' => PHP_VERSION,
'上传附件限制' => ini_get('upload_max_filesize'),
'执行时间限制' => ini_get('max_execution_time').'秒',
'服务器时间' => date("Y年n月j日 H:i:s"),
'北京时间' => gmdate("Y年n月j日 H:i:s",time()+8*3600),
'服务器域名/IP' => $_SERVER['SERVER_NAME'].' [ '.gethostbyname($_SERVER['SERVER_NAME']).' ]',
'剩余空间' => round((disk_free_space(".")/(1024*1024)),2).'M',
'当前用户的IP地址'=> $_SERVER['REMOTE_ADDR'],
);

return $info;

}