在angularjs php中显示错误验证消息

在angularjs php中显示错误验证消息,php,angularjs,Php,Angularjs,在后端,我检查以确保php变量userid不是空的,并且name变量是相同的,否则让它返回错误消息。我的前视图是angularjs 问题在于我的数据验证检查没有返回错误消息。 我已经在angularjs中实现了验证检查 if (response.data.trim() === 'data_empty') { //show error msg $scope.errorMsg = true; //hide the msg after 5 secs

在后端,我检查以确保php变量userid不是空的,并且name变量是相同的,否则让它返回错误消息。我的前视图是angularjs

问题在于我的数据验证检查没有返回错误消息。

我已经在angularjs中实现了验证检查

if (response.data.trim() === 'data_empty') {

//show error msg
            $scope.errorMsg = true;
            //hide the msg after 5 secs
            $timeout(function(){
$scope.errorMsg = false;
//window.location = 'errorpage.php';
}, 5000);

}


if (response.data.trim() === 'name_not_the_same') {

//show error msg
            $scope.errorMsg2 = true;
            //hide the msg after 5 secs
            $timeout(function(){
$scope.errorMsg2 = false;
}, 5000);

}
在html上,我有

<div class="alert alert-danger" ng-show="errorMsg">
        <strong>Wrong!</strong> All Field Must be Filled.!.
    </div>


<div class="alert alert-danger" ng-show="errorMsg2">
        <strong>Wrong!</strong> Name must be the same.!.
    </div>

错了必须填写所有字段。!。
错了名称必须相同。!。
如何在angularjs中验证数据并返回消息。下面是完整的代码

<!doctype html>
<html>
    <head>


        <title></title>
        <link href="style.css" type="text/css" rel="stylesheet" />
        <style>
            .comment{
                border-bottom: 1px solid gray;
                padding: 5px;
            }
        </style>

    </head>
    <body ng-app='myapp'>
        <div class="content" ng-controller='fetchCtrl' >

            <div class="post" ng-repeat='post in posts'>
                <h1 >{{ post.title }}</h1>
                <div class="post-text">
                    {{ post.content }}
                </div>

            </div>

        </div>



<div class="alert alert-danger" ng-show="errorMsg">
        <strong>Wrong!</strong> All Field Must be Filled.!.
    </div>


<div class="alert alert-danger" ng-show="errorMsg2">
        <strong>Wrong!</strong> Name must be the same.!.
    </div>

        <!-- Script -->
        <script src="angular.min.js"></script>
        <script>
        var fetch = angular.module('myapp', []);
        fetch.controller('fetchCtrl', ['$scope', '$http','$timeout', function ($scope, $http, $timeout) {

                // Fetch post data
                $scope.getPosts = function(){

                    $http({
                        method: 'post',
                        url: 'likeunlike.php',
                        data: {request: 1}
                    }).then(function successCallback(response) {

$scope.posts = response.data;



if (response.data.trim() === 'data_empty') {

//show error msg
            $scope.errorMsg = true;
            //hide the msg after 5 secs
            $timeout(function(){
$scope.errorMsg = false;
//window.location = 'errorpage.php';
}, 5000);

}


if (response.data.trim() === 'name_not_the_same') {

//show error msg
            $scope.errorMsg2 = true;
            //hide the msg after 5 secs
            $timeout(function(){
$scope.errorMsg2 = false;
}, 5000);

}


                    });

                }

                $scope.getPosts(); // Fetch post data

            }


        ]);

        </script>
    </body>
</html>

.评论{
边框底部:1px纯色灰色;
填充物:5px;
}
{{post.title}}
{{post.content}}
错了必须填写所有字段。!。
错了名称必须相同。!。
var fetch=angular.module('myapp',[]);
controller('fetchCtrl',['$scope','$http','$timeout',函数($scope,$http,$timeout){
//获取post数据
$scope.getPosts=函数(){
$http({
方法:“post”,
url:'likeunlike.php',
数据:{请求:1}
}).then(函数成功回调(响应){
$scope.posts=response.data;
if(response.data.trim()=='data\u empty'){
//显示错误消息
$scope.errorMsg=true;
//5秒后隐藏味精
$timeout(函数(){
$scope.errorMsg=false;
//window.location='errorpage.php';
}, 5000);
}
if(response.data.trim()=='name\u not\u same'){
//显示错误消息
$scope.errorMsg2=true;
//5秒后隐藏味精
$timeout(函数(){
$scope.errorMsg2=false;
}, 5000);
}
});
}
$scope.getPosts();//获取post数据
}
]);
php

<?php

include "config.php";

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

$request = $data->request;
$userid = '';
$name ='tony';

if($userid !=''){
$response ='data_empty';
echo  $response;
exit();
}


if($name !='tony'){
$response1 ='name_not_the_same';
echo  $response1;
exit();
}




// Get all posts list and like unlike
if($request == 1){

    $response_arr = array();

    $query = "SELECT * FROM posts";
    $result = mysqli_query($con,$query);

    while($row = mysqli_fetch_array($result)){
        $postid = $row['id'];
        $title = $row['title'];
        $content = $row['content'];
        $type = -1;


        $response_arr[] = array("id" => $postid, "title" => $title);
    }

    echo json_encode($response_arr);
    exit;
}

看起来您需要先验证JSON解析是否有效:

$data = json_decode(file_get_contents("php://input"));
if (json_last_error() !== JSON_ERROR_NONE) { 
  echo 'bad_json';
  exit();
}

// now safe to use $data
$request = $data->request;
...

问题不在于变量应该作为请求发送还是硬编码发送。我已经尝试了这两种方法,并且它不会通过angularjsSo打印任何错误。因此,在javascript控制台中查看,
likeunlike.php
返回什么?angular.min.js:124错误:[ngRepeat:duppes]在angular.min.js:7在angular.min.js:315在angular.min.js:147在m.$digest(angular.min.js:148)在m.$apply(angular.min.js:151)在l(angular.min.js:103)在s(angular.min.js:108)在XMLHttpRequest.y.onload(angular.min.js:109)时,您使用的是Chrome吗?单击网络选项卡并选择
likeunlike.php
请求。响应是什么?注意:在第8行的C:\xampp\htdocs\angle\comment\likeunlike.php中尝试获取非对象的属性注意:在第9行的C:\xampp\htdocs\angle\comment\likeunlike.php中尝试获取非对象的属性name\u不相同\u