使用JavaScript脚本判断页面是否在微信中被打开

// Js获取User-Agent window.navigator.userAgent  if(window.navigator.userAgent.match(/MicroMessenger/i) == "micromessenger")  // Php获取User-Agent echo $_SERVER['HTTP_USER_AGENT'];  if(strpos($_SERVER['HTTP_USER_AGENT'],'MicroMessenger')==true)  // 微信内部打开获取到的User-Agent Mozilla/5.0 (Linux; U; Android 5.0.2; zh-cn; MI 2S Build/LRX22G) AppleWebKit/533.1 (KHTML, like Gecko)Version/4.0 MQQBrowser/5.4 TBS/025488 Mobile Safari/533.1 MicroMessenger/6.3.9.48_refecd3e.700 NetType/WIFI Language/zh_CN 

// 你网页正常的url是 https://forum.xxx.com/home.php?view=2015  // 使用微信打开会在url后面添加几个参数 https://forum.xxx.com/home.php?view=2015&from=timeline&isappinstalled=0 

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b() : q.addEventListener && q.addEventListener("WeixinJSBridgeReady", b, !1))  }  function n() {    H.invoke || (H.invoke = function(b, c, d) {      a.WeixinJSBridge && WeixinJSBridge.invoke(b, e(c), d)    }, H.on = function(b, c) {      a.WeixinJSBridge && WeixinJSBridge.on(b, c)    })  }  var o, p, q, r, s, t, u, v, w, x, y, z, A, B, C, D, E, F, G, H;  if (!a.jWeixin) return o = {    config: "preVerifyJSAPI",    onMenuShareTimeline: "menu:share:timeline",    onMenuShareAppMessage: "menu:share:appmessage",    onMenuShareQQ: "menu:share:qq",    onMenuShareWeibo: "menu:share:weiboApp",    onMenuShareQZone: "menu:share:QZone",    previewImage: "imagePreview",    getLocation: "geoLocation",    openProductSpecificView: "openProductViewWithPid",    addCard: "batchAddCard",    openCard: "batchViewCard",    chooseWXPay: "getBrandWCPayRequest"  }, p = function() {    var b, a = {};    for (b in o) a[o[b]] = b;    return a  }(), q = a.document, r = q.title, s = navigator.userAgent.toLowerCase(), t = navigator.platform.toLowerCase(), u = !(!t.match("mac") && !t.match("win")), v = -1 != s.indexOf("wxdebugger"), w = -1 != s.indexOf("micromessenger"), x = -1 != s.indexOf("android"), y = -1 != s.indexOf("iphone") || -1 != s.indexOf("ipad"), z = function() {    var a = s.match(/micromessenger//(/d+/./d+/./d+)/) || s.match(/micromessenger//(/d+/./d+)/);    return a ? a[1] : ""  }(), A = !1, B = !1, C = {    initStartTime: l(),    initEndTime: 0,    preVerifyStartTime: 0,    preVerifyEndTime: 0  }, D = {    version: 1,    appId: "",    initTime: 0,    preVerifyTime: 0,    networkType: "",    preVerifyState: 1,    systemType: y ? 1 : x ? 2 : -1,    clientVersion: z,    url: encodeURIComponent(location.href)  }, E = {}, F = {    _completes: []  }, G = {    state: 0,    data: {}  }, m(function() {    C.initEndTime = l()  }), H = {    config: function(a) {      E = a, j("config", a);      var b = E.check === !1 ? !1 : !0;      m(function() {        var a, d, e;        if (b) c(o.config, {          verifyJsApiList: i(E.jsApiList)        }, function() {          F._complete = function(a) {            C.preVerifyEndTime = l(), G.state = 1, G.data = a          }, F.success = function() {            D.preVerifyState = 0          }, F.fail = function(a) {            F._fail ? 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0 : 1      }, a)    },    downloadVoice: function(a) {      c("downloadVoice", {        serverId: a.serverId,        isShowProgressTips: 0 == a.isShowProgressTips ? 0 : 1      }, a)    },    translateVoice: function(a) {      c("translateVoice", {        localId: a.localId,        isShowProgressTips: 0 == a.isShowProgressTips ? 0 : 1      }, a)    },    chooseImage: function(a) {      c("chooseImage", {        scene: "1|2",        count: a.count || 9,        sizeType: a.sizeType || ["original", "compressed"],        sourceType: a.sourceType || ["album", "camera"]      }, function() {        return a._complete = function(a) {          if (x) {            var b = a.localIds;            b && (a.localIds = JSON.parse(b))          }        }, a      }())    },    previewImage: function(a) {      c(o.previewImage, {        current: a.current,        urls: a.urls      }, a)    },    uploadImage: function(a) {      c("uploadImage", {        localId: a.localId,        isShowProgressTips: 0 == a.isShowProgressTips ? 0 : 1      }, a)    },    downloadImage: function(a) {      c("downloadImage", {        serverId: a.serverId,        isShowProgressTips: 0 == a.isShowProgressTips ? 0 : 1      }, a)    },    getNetworkType: function(a) {      var b = function(a) {        var c, d, e, b = a.errMsg;        if (a.errMsg = "getNetworkType:ok", c = a.subtype, delete a.subtype, c) a.networkType = c;        else switch (d = b.indexOf(":"), e = b.substring(d + 1)) {          case "wifi":          case "edge":          case "wwan":            a.networkType = e;            break;          default:            a.errMsg = "getNetworkType:fail"        }        return a      };      c("getNetworkType", {}, function() {        return a._complete = function(a) {          a = b(a)        }, a      }())    },    openLocation: function(a) {      c("openLocation", {        latitude: a.latitude,        longitude: a.longitude,        name: a.name || "",        address: a.address || "",        scale: a.scale || 28,        infoUrl: a.infoUrl || ""      }, a)    },    getLocation: function(a) {      a = a || {}, c(o.getLocation, {        type: a.type || "wgs84"      }, function() {        return a._complete = function(a) {          delete a.type        }, a      }())    },    hideOptionMenu: function(a) {      c("hideOptionMenu", {}, a)    },    showOptionMenu: function(a) {      c("showOptionMenu", {}, a)    },    closeWindow: function(a) {      a = a || {}, c("closeWindow", {}, a)    },    hideMenuItems: function(a) {      c("hideMenuItems", {        menuList: a.menuList      }, a)    },    showMenuItems: function(a) {      c("showMenuItems", {        menuList: a.menuList      }, a)    },    hideAllNonBaseMenuItem: function(a) {      c("hideAllNonBaseMenuItem", {}, a)    },    showAllNonBaseMenuItem: function(a) {      c("showAllNonBaseMenuItem", {}, a)    },    scanQRCode: function(a) {      a = a || {}, c("scanQRCode", {        needResult: a.needResult || 0,        scanType: a.scanType || ["qrCode", "barCode"]      }, function() {        return a._complete = function(a) {          var b, c;          y && (b = a.resultStr, b && (c = JSON.parse(b), a.resultStr = c && c.scan_code && c.scan_code.scan_result))        }, a      }())    },    openProductSpecificView: function(a) {      c(o.openProductSpecificView, {        pid: a.productId,        view_type: a.viewType || 0,        ext_info: a.extInfo      }, a)    },    addCard: function(a) {      var e, f, g, h, b = a.cardList,        d = [];      for (e = 0, f = b.length; f > e; ++e) g = b[e], h = {        card_id: g.cardId,        card_ext: g.cardExt      }, d.push(h);      c(o.addCard, {        card_list: d      }, function() {        return a._complete = function(a) {          var c, d, e, b = a.card_list;          if (b) {            for (b = JSON.parse(b), c = 0, d = b.length; d > c; ++c) e = b[c], e.cardId = e.card_id, e.cardExt = e.card_ext, e.isSuccess = e.is_succ ? !0 : !1, delete e.card_id, delete e.card_ext, delete e.is_succ;            a.cardList = b, delete a.card_list          }        }, a      }())    },    chooseCard: function(a) {      c("chooseCard", {        app_id: E.appId,        location_id: a.shopId || "",        sign_type: a.signType || "SHA1",        card_id: a.cardId || "",        card_type: a.cardType || "",        card_sign: a.cardSign,        time_stamp: a.timestamp + "",        nonce_str: a.nonceStr      }, function() {        return a._complete = function(a) {          a.cardList = a.choose_card_info, delete a.choose_card_info        }, a      }())    },    openCard: function(a) {      var e, f, g, h, b = a.cardList,        d = [];      for (e = 0, f = b.length; f > e; ++e) g = b[e], h = {        card_id: g.cardId,        code: g.code      }, d.push(h);      c(o.openCard, {        card_list: d      }, a)    },    chooseWXPay: function(a) {      c(o.chooseWXPay, f(a), a)    }  }, b && (a.wx = a.jWeixin = H), H});