/**
* 获得访客操作系统
*/
function get_os() {
if (!empty($_SERVER['HTTP_USER_AGENT'])) {
$os = $_SERVER['HTTP_USER_AGENT'];
if (preg_match('/win/i', $os)) {
$os = 'Windows';
} else if (preg_match('/mac/i', $os)) {
$os = 'MAC';
} else if (preg_match('/linux/i', $os)) {
$os = 'Linux';
} else if (preg_match('/unix/i', $os)) {
$os = 'Unix';
} else if (preg_match('/bsd/i', $os)) {
$os = 'BSD';
} else {
$os = 'Other';
}
return $os;
} else {
return 'unknow';
}
}
/**
* 获得访问者浏览器
*/
function browse_info() {
if (!empty($_SERVER['HTTP_USER_AGENT'])) {
$br = $_SERVER['HTTP_USER_AGENT'];
if (preg_match('/MSIE/i', $br)) {
$br = 'MSIE';
} else if (preg_match('/Firefox/i', $br)) {
$br = 'Firefox';
} else if (preg_match('/Chrome/i', $br)) {
$br = 'Chrome';
} else if (preg_match('/Safari/i', $br)) {
$br = 'Safari';
} else if (preg_match('/Opera/i', $br)) {
$br = 'Opera';
} else {
$br = 'Other';
}
return $br;
} else {
return 'unknow';
}
}
/**
* 获得访问者浏览器语言
*/
function get_lang() {
if (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$lang = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
$lang = substr($lang, 0, 5);
if (preg_match('/zh-cn/i',$lang)) {
$lang = '简体中文';
} else if (preg_match('/zh/i',$lang)) {
$lang = '繁体中文';
} else {
$lang = 'English';
}
return $lang;
} else {
return 'unknow';
}
}
// 获取IP地址
function get_client_ip($type = 0) {
$type = $type ? 1 : 0;
static $ip = NULL;
if ($ip !== NULL) return $ip[$type];
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
$pos = array_search('unknown',$arr);
if(false !== $pos) unset($arr[$pos]);
$ip = trim($arr[0]);
}elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
}elseif (isset($_SERVER['REMOTE_ADDR'])) {
$ip = $_SERVER['REMOTE_ADDR'];
}
// IP地址合法验证
$long = ip2long($ip);
$ip = $long ? array($ip, $long) : array('0.0.0.0', 0);
return $ip[$type];
}