javascript - how to get my current location on my browser -


hey guys i'm trying find current location on browser , html index file : 

<!doctype html> <html> <head>     <meta charset="utf-8">     <title>geocoding page</title>     <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>   <script>   function getlocation() {       if (navigator.geolocation) {           navigator.geolocation.getcurrentposition(saveposition, positionerror, {timeout:10000});       } else {           //geolocation not supported browser       }   }    // handle error here   function positionerror(error) {       var errorcode = error.code;       var message = error.message;        alert(message);   }    function saveposition(position) {             $.post("geocoordinates.php", {lat: position.coords.latitude, lng: position.coords.longitude});   }   </script> </head> <body>     <button onclick="getlocation();">get location</button> </body> </html>

and that's geocoordinates.php file : 

<?php  if(isset($_post['lat'], $_post['lng'])) {     $lat = $_post['lat'];     $lng = $_post['lng'];      $url = sprintf("https://maps.googleapis.com/maps/api/geocode/json?latlng=%s,%s", $lat, $lng);      $content = file_get_contents($url); // json content      $metadata = json_decode($content, true); //json decoder      if(count($metadata['results']) > 0) {         // format example @ url         // https://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452         $result = $metadata['results'][0];          // save in db further use         echo $result['formatted_address'];      }     else {         // no results returned     } }  ?>

i found answer previous question when run on browser gives me error : user denied goelocation can 1 ????? 

<p><button class="w3-btn w3-blue" onclick="getlocation()">try it</button></p> <div id="mapholder"></div> <script src="http://maps.google.com/maps/api/js?sensor=false"></script> <script> var x=document.getelementbyid("demo"); function getlocation()   {   if (navigator.geolocation)     {     navigator.geolocation.getcurrentposition(showposition,showerror);     }   else{x.innerhtml="geolocation not supported browser.";}   }  function showposition(position)   {   lat=position.coords.latitude;   lon=position.coords.longitude;   latlon=new google.maps.latlng(lat, lon)   mapholder=document.getelementbyid('mapholder')   mapholder.style.height='250px';   mapholder.style.width='100%';    var myoptions={   center:latlon,zoom:14,   maptypeid:google.maps.maptypeid.roadmap,   maptypecontrol:false,   navigationcontroloptions:{style:google.maps.navigationcontrolstyle.small}   };   var map=new google.maps.map(document.getelementbyid("mapholder"),myoptions);   var marker=new google.maps.marker({position:latlon,map:map,title:"you here!"});   }  function showerror(error)   {   switch(error.code)      {     case error.permission_denied:       x.innerhtml="user denied request geolocation."       break;     case error.position_unavailable:       x.innerhtml="location information unavailable."       break;     case error.timeout:       x.innerhtml="the request user location timed out."       break;     case error.unknown_error:       x.innerhtml="an unknown error occurred."       break;     }   } </script>

please see here more details:-http://www.w3schools.com/html/html5_geolocation.asp here javascript gives latitude , longitude , checks exact location of you.


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