表单提交后无法看到成功消息（AngularJS和PHP）

Question

我已经使用AngularJS构建了一个联系表单并使用了PHP。表格工作正常，我能够收到电子邮件。但是，在提交表单后，我想禁用提交按钮并显示成功消息，反之亦然。

我的代码如下：

var app = angular.module('myApp', ['jcs-autoValidate']);
app.run(['defaultErrorMessageResolver',
        function(defaultErrorMessageResolver) {
            defaultErrorMessageResolver.getErrorMessages().then(function (errorMessages) {
                errorMessages['validPhone'] = 'Please enter valid phone number';
            });
        }]);
app.controller('FormController', function($scope, $http){
   $scope.formData = {};
    $scope.result = 'hidden'
    $scope.submitButtonDisabled = false;
    $scope.submitted = false;
    $scope.submit = function(help) {
        $http({
            method : 'POST',
            url : 'process.php',
            data : $.param($scope.formData),
            headers : {'Content-Type': 'application/x-www-form-urlencoded'}
        }) .success(function(data) {
            console.log(data);
            if (data.success) {
                $scope.submitButtonDisabled = true;
                $scope.resultMessage = data.message;
                $scope.result = 'bg-sucess';
            } else {
                   $scope.submitButtonDisabled = false;
                   $scope.resultMessage = data.message;
                   $scope.result = 'bg-danger';
               }
        });
    }
});

PHP

<?php
require_once 'phpmailer/PHPMailerAutoload.php';

if (isset($_POST['name']) && isset($_POST['email']) && isset($_POST['phone']) && isset($_POST['message'])) {

    if (empty($_POST['name']) || empty($_POST['email']) || empty($_POST['phone']) || empty($_POST['message'])) {
        $data = array('success' => false, 'message' => 'Please the form completely.');
        echo json_encode($data);
        exit;
    }

    $mail = new PHPMailer();

    $mail->From = $_POST['email'];
    $mail->FromName = $_POST['name'];
    $mail->AddAddress('xxxx@gmail.com');
    $mail->Subject = $_POST['phone'];
    $mail->Body = "Name: " . $_POST['name'] . "\r\n\r\nMessage: " . stripslashes($_POST['message']);

    if (isset($_POST['ref'])) {
        $mail->Body .= "\r\n\r\nRef: " . $_POST['ref'];
    }
    if(!$mail->send()) {
        $data = array('success' => false, 'message' => 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo);
        echo json_encode($data);
        exit;
    }

    $data = array('success' => true, 'message' => 'Thank you for contacting us! We will get back to you soon.');
    echo json_encode($data);

} else {

    $data = array('success' => false, 'message' => 'Please the form completely.');
    echo json_encode($data);
}

CONSOLE：

{“成功”：是的，“消息”：“感谢您与我们联系！我们会尽快回复您。”}

您还可以访问演示链接以获取更多信息 http://newangularform.comlu.com/

感谢您提前提供任何帮助