Angular没有正确发送http帖子

I have this Angular code in a function:

function doAjax() {

                $http({
                        method: 'POST',
                        url: 'http://thatsmyipv4address/MarkBeacons/www/test.php',
                        data: {
                            'dispositivo': getDevice(),
                            'momentoacceso': getMomentoExacto()
                        }
                    })
                    .then(function (data) {
                        alert("Data Saved: " + data.response);
                        console.log(data);
                    }, function (error) {
                        //alert('error: ' + error);
                        console.log('error: ' + error.data);
                    });
            }

And when I call doAjax() it must send a POST message to my test.php with the values of getDevice() that returns an String and getMomentoExacto() that returns another String.

But when I execute the test.php:

$link = mysqli_connect("localhost", "root", "", "markbeacons");

if(isset($_POST['dispositivo'])) {
  $dispositivo = $_POST['dispositivo'];
} else {
  $dispositivo = 'valor1';
}

if(isset($_POST['momentoacceso'])) {
  $momentoacceso = $_POST['momentoacceso'];
} else {
    $momentoacceso = 'valor2';
}

echo "$dispositivo";
echo "$momentoacceso";

$sql = "INSERT INTO registroEstimote (dispositivo, momentoconexion) VALUES ('$dispositivo', '$momentoacceso');";

Why it's inserting me on the data base the else values (valor1 and valor2)?

The $http.post and $http.put methods accept any JavaScript object (or a string) value as their data parameter. If data is a JavaScript object it will be, by default, converted to a JSON string.

You have forgotten to add this line

 headers: {'Content-Type': 'application/x-www-form-urlencoded'}

 $http({
        method: 'POST',
        url: 'http://thatsmyipv4address/MarkBeacons/www/test.php',
        data:  $.param({
            'dispositivo': getDevice(),
            'momentoacceso': getMomentoExacto()
        }),
        headers: {'Content-Type': 'application/x-www-form-urlencoded'}
    })
    .then(function (data) {
        alert("Data Saved: " + data.response);
        console.log(data);
    }, function (error) {
        //alert('error: ' + error);
        console.log('error: ' + error.data);
    });

PHP is not populating $_POST as you expect.

The POST-data can be achieved this:

$postdata = file_get_contents("php://input");

To get the correct fields you have to json_decode() it:

$request = json_decode($postdata);
$dispositivo = $request->dispositivo;
$momentoacceso = $request->momentoacceso;