我有一个下拉列表，我可以通过ng_model指令（selectedName）访问所选的名称，但我的问题是，当我尝试将所选的选项值传递给数据库时，它传递一个空值，查询执行并且文本框值正确传递问题是下拉选项值..出了什么问题..在控制器中或使用php代码mysqli_real_escape_string部分 . 它很困惑..任何帮助
<select data-ng-model="selectedName" ng-options="item for item in names">
</select>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.names = ["7G", "8G", "13G", "15G", "23G","26G"];
app.controller("usercontroller", function($scope, $http){
$scope.insertData = function(){
$http.post(
"insert.php",
{'selectedName':$scope.selectedName,
'selectedProject':$scope.selectedProject, 'user':$scope.user}
).success(function(data){
alert(data);
});
}
$connect = mysqli_connect("localhost","root","","microlinks");
$data = json_decode(file_get_contents("php://input"));
if(count($data) > 0){
$frequency = mysqli_real_escape_string($connect, $data->selectedName);
$project = mysqli_real_escape_string($connect, $data->selectedProject);
$user = mysqli_real_escape_string($connect, $data->user);
$query = "insert into links(frequency,project,user,date) values ('$frequency','$project', '$user',)";
if(mysqli_query($connect, $query))
{
echo "Hello World";
}
else
{
echo 'Error';
}
}