我如何在PHP中使用Ajax $_POST从javascript检索位置数据

How do I retrieve location data from javascript using Ajax $_POST in PHP?

本文关键字：POST javascript 检索 置数据 位置 Ajax PHP      更新时间：2023-09-26

我无法获得以下代码在PHP中工作。我想检索用户位置，然后将其发送到我的php脚本，以便在服务器上进行进一步处理。Php不会检索数据。

编辑:

    <!DOCTYPE html>
<html>
<head>
<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
</head>
<body>

<script>
if (navigator.geolocation) {
  navigator.geolocation.getCurrentPosition(successFunction, errorFunction);
  } else {
  alert('Geolocation is required for this page, but your browser doesn&apos;t support it. Try it with a browser that does, such as Opera 10.60.');
}
function successFunction(position) {
  var lat = position.coords.latitude;
  var long = position.coords.longitude;
  var latlong = {"lat" : lat , "long" : long};
  var latlong_encoded = JSON.stringify(latlong);
  $.ajax({
   url: 'PostTest.php',
   type: 'POST',
   data: {"userLocation" : latlong_encoded},
   success: function(data) {
        alert(latlong_encoded);
   }
});
}
function errorFunction(position) {
  alert('Error!');
}
</script>

</body>
</html>

下面是php代码:

<?php
$lat[]= array('coord'=>json_decode($_POST["userLocation"]));
print_r($lat);
?>

得到一个空数组。Array ([0] => Array ([coord] =>))

尝试添加

dataType: "json" //for response
contentType: "application/json; charset=UTF-8" //for request

我的片段:

    if (navigator.geolocation) {
      navigator.geolocation.getCurrentPosition(showLocation);
    }
    else { 
    alert('Geolocation non supported..');
    }
    function showLocation(position) {
        var lat = position.coords.latitude;
        var long = position.coords.longitude;
        $.ajax({
           //YOUR AJAX REQUEST USING LAT, LONG
        });
    }

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