angularJS实时搜索中的德语字符

Question

AngularJS实时搜索中的德语字符

我对MySQL的AngularJS实时搜索有问题，除德语字符外，一切都很完美。我尝试了一切但没有结果。

这是我的JS代码：

PATH = 'search.php';

var app = angular.module("myApp",[]);
   //live search controller for welcome view and welcome controller
    app.controller('SearchController', function($scope, $http){
    $scope.url = 'search.php'; // the get request page
    $scope.search = function (){
        //create the http post request
        //the data holds the search key
        //the request is a json request
        $http.post($scope.url,
        {"data":$scope.keybords}
                ).success(function (data, status){
                    $scope.status = status;
                    $scope.data = data;
                    $scope.result = data;
                }).error(function (data, status){
                    $scope.data = data || "Request Failed";
                    $scope.status = status;
                });
    };
});

这是我的PHP代码：

    <?php
 mysql_set_charset('utf8');
  header('Content-Type: text/html; charset=utf-8');
require_once './db_connect.php';

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

            $objData = json_decode($data);

            $key =  $objData->data;
            if(!empty($key)){

                $sql = "SELECT * from search where title LIKE '%$key%' or description LIKE '%$key%' OR url LIKE '%$key%'";

                $result =   mysqli_query($link, $sql) or die(mysqli_error($link));

                $output = array();
                while ($row = mysqli_fetch_array($result)) {
                    $output[] = $row;

                }
                echo json_encode($output);
            }


?>

...这里是testpage： http://www.topfertighaus.at/ng_live_search/index.html