Get location information via WeChat, save to server use

First, in the page, add the configuration file to get through JS.

<script type= "Text/javascript" > Wx.config ({debug:false, appId: ' {$signPackage. appId} ', timestamp: ' {$sig　　　　　　Npackage.timestamp} ', Noncestr: ' {$signPackage. noncestr} ', Signature: ' {$signPackage. Signature} ', Jsapilist: [　　All APIs to be called are added to this list ' Checkjsapi ', ' openlocation ', ' getLocation ', ' Scanqrcode ']};　　　    Wx.ready (function () {$ (' #scan '). Click (function () {Wx.scanqrcode ({needresult:0,});　　　　}); Wx.checkjsapi ({jsapilist: [' getLocation '], success:function (res) {if (Res.checkresult . GetLocation = = False) {alert (' Your version is too low to support JS interface, please upgrade to the latest version!　　　　　　　　　　 ');　　　　　　　　Return　　　　}　　　　　　}　　　　}); Wx.getlocation ({success:function (res) {var latitude = res.latitude;//latitude, floating point, range from -90 var lo Ngitude = Res.longitude;　　　　　　　　Longitude, floating point number, RANGE 180 ~-180. var geoconv = ' Http://api.map.baidu.com/geoconv/v1/?callback=coordinateTransformation&cooRds= ' + longitude + ', ' + latitude + ' &from=1&to=5&ak=5bfnbsgnvf5g2o72npvtdxfm ';　　　　　　　　var script = document.createelement (' script ');　　　　　　　　SCRIPT.SRC = Geoconv;　　　　　　 Document.head.appendChild (script);　　　　　    }, Cancel:function (res) {alert (' user denied authorization to obtain geographical location ');　　}　　　　 });　　});　　　　function Coordinatetransformation (data) {var latlng = data.result[0].y + ', ' + data.result[0].x; var url = ' http://api.map.baidu.com/geocoder/v2/?callback=getcurrentlocation&ak=5bfnbsgnvf5g2o72npvtdxfm&　　　　Location= ' + latlng + ' &output=json&pois=1 ';　　　　var script = document.createelement (' script ');　　　　script.src = URL;　　 Document.head.appendChild (script);　　　　　　} function getcurrentlocation (data) {if (data.status = = = 0) {var address = data.result.formatted_address,　　　　　　x = data.result.location.lng, y = data.result.location.lat, city = data.result.addressComponent.city, Street = Data.result.addressComponent.street | | Data.result.formatted_address, reqdata = ' street= ' + address + ' &name= ' + street + ' &lng= ' + x + ' &lat= ' + y + ' &c　　　　　　Ity= ' + City;　　　　　　 var url = "{: U (' index/saveposition ')}"; 　　　　 $.getjson (url,{' name ': Street, ' LNG ': x, ' lat ': Y, ' City ': city},function (data) {if (Data.returncode) {}}); }}</script>

Next, receive the geographic coordinates of the Ajax pass in the controller and save it to the session.

Public Function saveposition () {$city   = II (' get.city ', ' ', ' trim ');　　$ADDR = II (' get.name ', ' ', ' trim ');　　$LNG   = II (' get.lng ', ' ', ' trim ');　　$lat    = II (' Get.lat ', ' ', ' trim ');　　$myLocation = Array (' City ' =   $city, ' addr ' + $addr, ' lng ' =   = $lng, ' lat ' = +   $lat,);　　$_session[' mylocation '] = $myLocation;　　$data [' returncode '] = 1; $data [' returninfo '] = ' Get location successful!　　';　　$this->ajaxreturn ($data); return;}

Note: The thinkphp framework is used, and II is a custom method to get the value of a GET or post pass, just like the I function.

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