Use JavaScript scripts to determine whether the page is opened on WeChat.

Use JavaScript scripts to determine whether the page is being opened.

1. Determine Based on User-Agent

// Js obtains the User-Agent window. navigator. userAgent if (window. navigator. userAgent. match (/MicroMessenger/I) = "micromessenger") // Php obtains the User-Agent echo $ _ SERVER ['HTTP _ USER_AGENT ']; if (strpos ($ _ SERVER ['HTTP _ USER_AGENT '], 'micromessenger') = true) // open the obtained User-Agent Mozilla/5.0 (Linux; u; Android 5.0.2; zh-cn; MI 2 S 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

 
2. Url address Determination

// Your webpage's normal url is https://forum.xxx.com/home.php? View = 2015 // how many parameter https://forum.xxx.com/home.php will be added after the url with open? View = 2015 & from = timeline & isappinstalled = 0

 
3. Use weixin-web-js to determine if it is

! function(a, b) {  "function" == typeof define && (define.amd || define.cmd) ? define(function() {    return b(a)  }) : b(a, !0)}(this, function(a, b) {  function c(b, c, d) {    a.WeixinJSBridge ? WeixinJSBridge.invoke(b, e(c), function(a) {      g(b, a, d)    }) : j(b, d)  }  function d(b, c, d) {    a.WeixinJSBridge ? WeixinJSBridge.on(b, function(a) {      d && d.trigger && d.trigger(a), g(b, a, c)    }) : d ? j(b, d) : j(b, c)  }  function e(a) {    return a = a || {}, a.appId = E.appId, a.verifyAppId = E.appId, a.verifySignType = "sha1", a.verifyTimestamp = E.timestamp + "", a.verifyNonceStr = E.nonceStr, a.verifySignature = E.signature, a  }  function f(a) {    return {      timeStamp: a.timestamp + "",      nonceStr: a.nonceStr,      "package": a.package,      paySign: a.paySign,      signType: a.signType || "SHA1"    }  }  function g(a, b, c) {    var d, e, f;    switch (delete b.err_code, delete b.err_desc, delete b.err_detail, d = b.errMsg, d || (d = b.err_msg, delete b.err_msg, d = h(a, d), b.errMsg = d), c = c || {}, c._complete && (c._complete(b), delete c._complete), d = b.errMsg || "", E.debug && !c.isInnerInvoke && alert(JSON.stringify(b)), e = d.indexOf(":"), f = d.substring(e + 1)) {      case "ok":        c.success && c.success(b);        break;      case "cancel":        c.cancel && c.cancel(b);        break;      default:        c.fail && c.fail(b)    }    c.complete && c.complete(b)  }  function h(a, b) {    var e, f, c = a,      d = p[c];    return d && (c = d), e = "ok", b && (f = b.indexOf(":"), e = b.substring(f + 1), "confirm" == e && (e = "ok"), "failed" == e && (e = "fail"), -1 != e.indexOf("failed_") && (e = e.substring(7)), -1 != e.indexOf("fail_") && (e = e.substring(5)), e = e.replace(/_/g, " "), e = e.toLowerCase(), ("access denied" == e || "no permission to execute" == e) && (e = "permission denied"), "config" == c && "function not exist" == e && (e = "ok"), "" == e && (e = "fail")), b = c + ":" + e  }  function i(a) {    var b, c, d, e;    if (a) {      for (b = 0, c = a.length; c > b; ++b) d = a[b], e = o[d], e && (a[b] = e);      return a    }  }  function j(a, b) {    if (!(!E.debug || b && b.isInnerInvoke)) {      var c = p[a];      c && (a = c), b && b._complete && delete b._complete, console.log('"' + a + '",', b || "")    }  }  function k() {    0 != D.preVerifyState && (u || v || E.debug || "6.0.2" > z || D.systemType < 0 || A || (A = !0, D.appId = E.appId, D.initTime = C.initEndTime - C.initStartTime, D.preVerifyTime = C.preVerifyEndTime - C.preVerifyStartTime, H.getNetworkType({      isInnerInvoke: !0,      success: function(a) {        var b, c;        D.networkType = a.networkType, b = "http://open.weixin.qq.com/sdk/report?v=" + D.version + "&o=" + D.preVerifyState + "&s=" + D.systemType + "&c=" + D.clientVersion + "&a=" + D.appId + "&n=" + D.networkType + "&i=" + D.initTime + "&p=" + D.preVerifyTime + "&u=" + D.url, c = new Image, c.src = b      }    })))  }  function l() {    return (new Date).getTime()  }  function m(b) {    w && (a.WeixinJSBridge ? 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 ? F._fail(a) : G.state = -1          };          var a = F._completes;          return a.push(function() {            k()          }), F.complete = function() {            for (var c = 0, d = a.length; d > c; ++c) a[c]();            F._completes = []          }, F        }()), C.preVerifyStartTime = l();        else {          for (G.state = 1, a = F._completes, d = 0, e = a.length; e > d; ++d) a[d]();          F._completes = []        }      }), E.beta && n()    },    ready: function(a) {      0 != G.state ? a() : (F._completes.push(a), !w && E.debug && a())    },    error: function(a) {      "6.0.2" > z || B || (B = !0, -1 == G.state ? a(G.data) : F._fail = a)    },    checkJsApi: function(a) {      var b = function(a) {        var c, d, b = a.checkResult;        for (c in b) d = p[c], d && (b[d] = b[c], delete b[c]);        return a      };      c("checkJsApi", {        jsApiList: i(a.jsApiList)      }, function() {        return a._complete = function(a) {          if (x) {            var c = a.checkResult;            c && (a.checkResult = JSON.parse(c))          }          a = b(a)        }, a      }())    },    onMenuShareTimeline: function(a) {      d(o.onMenuShareTimeline, {        complete: function() {          c("shareTimeline", {            title: a.title || r,            desc: a.title || r,            img_url: a.imgUrl || "",            link: a.link || location.href,            type: a.type || "link",            data_url: a.dataUrl || ""          }, a)        }      }, a)    },    onMenuShareAppMessage: function(a) {      d(o.onMenuShareAppMessage, {        complete: function() {          c("sendAppMessage", {            title: a.title || r,            desc: a.desc || "",            link: a.link || location.href,            img_url: a.imgUrl || "",            type: a.type || "link",            data_url: a.dataUrl || ""          }, a)        }      }, a)    },    onMenuShareQQ: function(a) {      d(o.onMenuShareQQ, {        complete: function() {          c("shareQQ", {            title: a.title || r,            desc: a.desc || "",            img_url: a.imgUrl || "",            link: a.link || location.href          }, a)        }      }, a)    },    onMenuShareWeibo: function(a) {      d(o.onMenuShareWeibo, {        complete: function() {          c("shareWeiboApp", {            title: a.title || r,            desc: a.desc || "",            img_url: a.imgUrl || "",            link: a.link || location.href          }, a)        }      }, a)    },    onMenuShareQZone: function(a) {      d(o.onMenuShareQZone, {        complete: function() {          c("shareQZone", {            title: a.title || r,            desc: a.desc || "",            img_url: a.imgUrl || "",            link: a.link || location.href          }, a)        }      }, a)    },    startRecord: function(a) {      c("startRecord", {}, a)    },    stopRecord: function(a) {      c("stopRecord", {}, a)    },    onVoiceRecordEnd: function(a) {      d("onVoiceRecordEnd", a)    },    playVoice: function(a) {      c("playVoice", {        localId: a.localId      }, a)    },    pauseVoice: function(a) {      c("pauseVoice", {        localId: a.localId      }, a)    },    stopVoice: function(a) {      c("stopVoice", {        localId: a.localId      }, a)    },    onVoicePlayEnd: function(a) {      d("onVoicePlayEnd", a)    },    uploadVoice: function(a) {      c("uploadVoice", {        localId: a.localId,        isShowProgressTips: 0 == a.isShowProgressTips ? 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});

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