使用jQuery向PHP发送JSON数据

I'm trying to write a jQuery function to send a query string to a PHP script, but I can't seem to get the text to get to the server in the correct format. I want to send this query string (with the appropriate URL encoding):

我正在尝试编写一个jQuery函数向PHP脚本发送查询字符串，但是我似乎无法以正确的格式将文本发送到服务器。我想发送这个查询字符串(使用适当的URL编码):

data={"name":"Chris"}

where 'data' is always a JSON string. Using jQuery's .ajax function I tried setting my data variable to

这里的“数据”总是一个JSON字符串。使用jQuery的.ajax函数，我尝试将数据变量设置为

data: { 'data': {"name":"chris"} },

but PHP ends up getting:

但是PHP最终会:

data[name]=chris

What's the proper way to send the data back to the server so that the JSON string is properly reserved, without having to hand-craft the string?

将数据发送回服务器以使JSON字符串得到适当保留的正确方法是什么?

4 个解决方案

#1

First, you'll need to use json2.js because jQuery does not include the capability to output JSON, only to parse it, and the method we will be using is not supported in IE 6/7. Convert your JavaScript object to JSON:

首先，您需要使用json2。因为jQuery不包含输出JSON的能力，只需要解析它，而我们将使用的方法在IE 6/7中不受支持。将JavaScript对象转换为JSON:

var encoded = JSON.stringify(data);

Then you need to include that JSON-formatted string as request data:

然后需要将json格式的字符串包含为请求数据:

$.getJSON(url, {data: encoded}, function() { ... });

Edit: An older version of this post referred to the jquery-json plugin, but it's obvious that that plug-in was written when jQuery 1.3.x was current.

编辑:这篇文章的一个旧版本引用了jQuery -json插件，但是很明显这个插件是在jQuery 1.3时编写的。x是电流。

#2

All you have to do is put quotes around the string

你所要做的就是在字符串周围加上引号。

data: { 'data': '{"name":"chris"}' }

#3

Although, unclear from your question, if you are trying to know how to handle JSON strings properly in PHP, the best way would be to use the functions json_encode and json_decode.

虽然，不清楚您的问题，如果您试图了解如何在PHP中正确地处理JSON字符串，最好的方法是使用json_encode和json_decode函数。

#4

This is wrong:

这是错误的:

data: { 'data': {"name":"chris"} },

You get a indexed array with key of name and value of chris.

您将得到一个具有chris的名称和值的键的索引数组。

this is right:

这是正确的:

{ name : "chris" }

If you want in php:

如果你想用php:

 name = "chris";

Then you must send

那么你必须发送

 { name : "chris" }

Depending on if you GET you can get:

取决于你能否得到:

$name = $_GET["name"]; 

echo $name; // chris

#1