前言
五大呈现引擎：
IE , Gecko , WebKit , KHTML , Opera .
- IE8,IE9呈现引擎:Trident;
- Firefox呈现引擎:Gecko,从Netscape6开始；
- safari呈现引擎:WebKit,safari从2003年出现；
（WebKit是Linux中Konqueror的呈现引擎KHTML的一个分支，之后独立成一个开源项目） - Konqueror呈现引擎:KHTML;
- Chrome呈现引擎:WebKit;
- Opera呈现引擎:Opera;
- ios和Android默认浏览器呈现引擎:WebKit。
以下是完整的用户代理字符串检测脚本，包括检测呈现引擎、平台、Windows操作系统、移动设备和游戏系统。
var client = function(){
//呈现引擎
var engine = {
ie: 0,
gecko: 0,
webkit: 0,
khtml: 0,
opera: 0,
//完整的版本号
ver: null
};
//浏览器
var browser = {
//主要浏览器
ie: 0,
firefox: 0,
safari: 0,
konq: 0,
opera: 0,
chrome: 0,
//具体的版本号
ver: null
};
//平台、设备和操作系统
var system = {
win: false,
mac: false,
x11: false,
//移动设备
iphone: false,
ipod: false,
ipad: false,
ios: false,
android: false,
nokiaN: false,
winMobile: false,
//游戏系统
wii: false,
ps: false
};
//检测呈现引擎和浏览器
var ua = navigator.userAgent;
if (window.opera){
engine.ver = browser.ver = window.opera.version();
engine.opera = browser.opera = parseFloat(engine.ver);
} else if (/AppleWebKit/(S+)/.test(ua)){
engine.ver = RegExp["$1"];
engine.webkit = parseFloat(engine.ver);
//确定是 Chrome 还是 Safari
if (/Chrome/(S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.chrome = parseFloat(browser.ver);
} else if (/Version/(S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.safari = parseFloat(browser.ver);
} else {
//近似地确定版本号
var safariVersion = 1;
if (engine.webkit < 100){
safariVersion = 1;
} else if (engine.webkit < 312){
safariVersion = 1.2;
} else if (engine.webkit < 412){
safariVersion = 1.3;
} else {
safariVersion = 2;
}
browser.safari = browser.ver = safariVersion;
}
} else if (/KHTML/(S+)/.test(ua) || /Konqueror/([^;]+)/.test(ua)){
engine.ver = browser.ver = RegExp["$1"];
engine.khtml = browser.konq = parseFloat(engine.ver);
} else if (/rv:([^)]+)) Gecko/d{8}/.test(ua)){
engine.ver = RegExp["$1"];
engine.gecko = parseFloat(engine.ver);
//确定是不是 Firefox
if (/Firefox/(S+)/.test(ua)){
browser.ver = RegExp["$1"];
browser.firefox = parseFloat(browser.ver);
}
} else if (/MSIE ([^;]+)/.test(ua)){
engine.ver = browser.ver = RegExp["$1"];
engine.ie = browser.ie = parseFloat(engine.ver);
}
//检测浏览器
browser.ie = engine.ie;
browser.opera = engine.opera;
//检测平台
var p = navigator.platform;
system.win = p.indexOf("Win") == 0;
system.mac = p.indexOf("Mac") == 0;
system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
//检测 Windows 操作系统
if (system.win){
if (/Win(?:dows )?([^do]{2})s?(d+.d+)?/.test(ua)){
if (RegExp["$1"] == "NT"){
switch(RegExp["$2"]){
case "5.0":
system.win = "2000";
break;
case "5.1":
system.win = "XP";
break;
case "6.0":
system.win = "Vista";
break;
case "6.1":
system.win = "7";
break;
default:
system.win = "NT";
break;
}
} else if (RegExp["$1"] == "9x"){
system.win = "ME";
} else {
system.win = RegExp["$1"];
}
}
}
//移动设备
system.iphone = ua.indexOf("iPhone") > -1;
system.ipod = ua.indexOf("iPod") > -1;
system.ipad = ua.indexOf("iPad") > -1;
system.nokiaN = ua.indexOf("NokiaN") > -1;
//windows mobile
if (system.win == "CE"){
system.winMobile = system.win;
} else if (system.win == "Ph"){
if(/Windows Phone OS (d+.d+)/.test(ua)){;
system.win = "Phone";
system.winMobile = parseFloat(RegExp["$1"]);
}
}
//检测 iOS 版本
if (system.mac && ua.indexOf("Mobile") > -1){
if (/CPU (?:iPhone )?OS (d+_d+)/.test(ua)){
system.ios = parseFloat(RegExp.$1.replace("_", "."));
} else {
system.ios = 2; //不能真正检测出来，所以只能猜测
}
}
//检测 Android 版本
if (/Android (d+.d+)/.test(ua)){
system.android = parseFloat(RegExp.$1);
}
//游戏系统
system.wii = ua.indexOf("Wii") > -1;
system.ps = /playstation/i.test(ua);
//返回这些对象
return {
engine: engine,
browser: browser,
system: system
};
}();
基于以上测试（2017/07/04）
在chrome中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 59,
"ver": "59.0.3071.115"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在firefox中运行结果：
{
"engine": {
"ie": 0,
"gecko": 54,
"webkit": 0,
"khtml": 0,
"opera": 0,
"ver": "54.0"
},
"browser": {
"ie": 0,
"firefox": 54,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 0,
"ver": "54.0"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在safari中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 534.57,
"khtml": 0,
"opera": 0,
"ver": "534.57.2"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 5.1,
"konq": 0,
"opera": 0,
"chrome": 0,
"ver": "5.1.7"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在360极速浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 50,
"ver": "50.0.2661.102"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在360安全浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 45,
"ver": "45.0.2454.101"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在IE中运行结果：
{
"engine": {
"ie": 9,
"gecko": 0,
"webkit": 0,
"khtml": 0,
"opera": 0,
"ver": "9.0"
},
"browser": {
"ie": 9,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 0,
"ver": "9.0"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在opera中运行结果：
（2013Opera弃用自家 Presto 引擎转用 WebKit了)
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 59,
"ver": "59.0.3071.86"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在QQ浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 53,
"ver": "53.0.2785.104"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在搜狗高速浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 49,
"ver": "49.0.2623.221"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在2345加速浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 47,
"ver": "47.0.2526.108"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在百度浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 47,
"ver": "47.0.2526.106"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在猎豹浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 49,
"ver": "49.0.2623.75"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
在傲游浏览器中运行结果：
{
"engine": {
"ie": 0,
"gecko": 0,
"webkit": 537.36,
"khtml": 0,
"opera": 0,
"ver": "537.36"
},
"browser": {
"ie": 0,
"firefox": 0,
"safari": 0,
"konq": 0,
"opera": 0,
"chrome": 47,
"ver": "47.0.2526.73"
},
"system": {
"win": "7",
"mac": false,
"x11": false,
"iphone": false,
"ipod": false,
"ipad": false,
"ios": false,
"android": false,
"nokiaN": false,
"winMobile": false,
"wii": false,
"ps": false
}
}
2017.7.4 ，各浏览器测试后，以上13个常用浏览器，11个是基于webkit，1个基于gecko，还有一个基于ie。