JSON PHP解码不起作用 [英] JSON PHP decode not working

问题描述

我看过很多例子，但是无论出于什么原因，似乎没有一个适合我.

I have seen many examples, but for whatever reason, none seem to work for me.

我将以下内容通过ajax从应用程序发送到php文件.发送时的外观如下:

I have the following sent from a app, via ajax, to a php file. This is how it looks when its sent:

    obj:{"ClientData":
    [{
        "firstName":"Master",
        "lastName":"Tester",
        "email":"[e-mail]",
        "dob":"1973-01-22",
        "age":"51",
    }],
    "HealthData":
    [
        "condition : Prone to Fainting / Dizziness",
        "condition : Allergic Response to Plasters",
    ],
    "someData":
    [{
        "firstName":"Male",
        "lastName":"checking",
    }]
    }

原样代码:

{"ClientData":[{"firstName":"Master","lastName":"Tester","email":"[e-mail]","dob":"1973-01-22","age":"51","pierceType":"Vici","street":"number of house","city":"here","county":"there","postcode":"everywhere"}],"HealthData":[["condtion : Prone to Fainting / Dizziness","condtion : Allergic Response to Plasters","condtion : Prone to Fainting / Dizziness"]],"PiercerData":[{"firstName":"Male","lastName":"checking","pierceDate":"2013-02-25","jewelleryType":"Vici","jewelleryDesign":"Vidi","jewellerySize":"Vici","idChecked":null,"medicalChecked":null,"notes":"This is for more info"}]}

这在一个长行中进入了一个php文件，这是代码:

This comes in one long line into a php file, here is the code:

<?php
header('Content-Type: application/json');
header("Access-Control-Allow-Origin: *");
//var_dump($_POST['obj']);

$Ojb = json_decode($_POST['obj'],true);

$clientData = $Ojb['ClientData'];
$healthData = $Ojb->HealthData;
$someData = $Ojb->someData;

print_r($clientData['firstName']);    
?>

无论我尝试了什么，我都看不到任何信息，我什至没有收到错误，只是空白！请有人能指出正确的方向.

No matter what I have tried, I am unable to see any of the information, I don't even get an error, just blank! Please can someone point me in the right direction.

谢谢:)

更新

以下是创建对象的代码:

Here is the code that creates the object:

ClientObject = {

        ClientData : [
            {
                firstName : localStorage.getItem('cfn'),
                lastName : localStorage.getItem('cln'),
                email : localStorage.getItem('cem'),
                dob : localStorage.getItem('cdo'),
                age : localStorage.getItem('cag'),
                pierceType : localStorage.getItem('cpt'),
                street : localStorage.getItem('cst'),
                city : localStorage.getItem('cci'),
                county : localStorage.getItem('cco'),
                postcode : localStorage.getItem('cpc')
            }
        ],

        HealthData : health,

        PiercerData : [
        {
                firstName : localStorage.getItem('pfn'),
                lastName : localStorage.getItem('pln'),
                pierceDate : localStorage.getItem('pda'),
                jewelleryType : localStorage.getItem('pjt'),
                jewelleryDesign : localStorage.getItem('pjd'),
                jewellerySize : localStorage.getItem('pjs'),
                idChecked: localStorage.getItem('pid'),
                medicalChecked: localStorage.getItem('pmh'),
                notes: localStorage.getItem('poi')
        }
        ]

    };

这是它的发送方式:

function senddata() {
    $.ajax({
        url: 'http://domain.com/app.php',
        type: 'POST',
        crossDomain: true,
        contentType: "application/json; charset=utf-8",
        dataType: 'jsonp',              
        data: 'obj='+JSON.stringify(ClientObject),

        success : function(res) {
            console.log(res);

        },
        error: function(err) {

        }
    });
}

推荐答案

有些事情会引起问题:

1. 为什么dataType: 'jsonp'?如果您不打算使用jsonp，请不要指示jQuery执行此操作.请参阅文档: https://api.jquery.com/jQuery.ajax/

1. why dataType: 'jsonp'? If you don't intend to utilize jsonp, don't instruct jQuery to do this. See the docs: https://api.jquery.com/jQuery.ajax/

"jsonp":使用JSONP加载JSON块.增加了一个额外的 ?callback =?" URL的末尾以指定回调.禁用 通过将查询字符串参数"_ = [TIMESTAMP]"附加到 URL，除非将cache选项设置为true.

"jsonp": Loads in a JSON block using JSONP. Adds an extra "?callback=?" to the end of your URL to specify the callback. Disables caching by appending a query string parameter, "_=[TIMESTAMP]", to the URL unless the cache option is set to true.

'obj='+JSON.stringify(ClientObject),这将确保无效的json.

'obj='+JSON.stringify(ClientObject), this will guarantee invalid json.

作为参考，请看以下问题: jQuery ajax，如何发送JSON而不是QueryString 用jQuery发送JSON.

For reference, have a look at this question: jQuery ajax, how to send JSON instead of QueryString on how to send json with jquery.

也就是说，请尝试以下操作:

That said, try the following:

function senddata() {
  $.ajax({
    url: 'app.php',
    type: 'POST',
    crossDomain: true,
    contentType: 'application/json; charset=utf-8"',
    data: JSON.stringify(ClientObject),
    success : function(res) {
      console.log(res);
    },
    error: function(err) {
    }
  });
}

---

在app.php中使用

---

And in app.php use

$input = json_decode(file_get_contents('php://input'));

获取数据.像这样使用它:

to get the data. Use it like:

var_dump($input->ClientData[0]->firstName); // => string(6) "Master"

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