为什么json_encode添加反斜杠? [英] Why is json_encode adding backslashes?

问题描述

我已经使用json_encode很长时间了，到目前为止我还没有遇到任何问题. 现在，我正在使用上传脚本，并且尝试在文件上传后返回一些JSON数据.

I've been using json_encode for a long time, and I've not had any problems so far. Now I'm working with a upload script and I try to return some JSON data after file upload.

我有以下代码:

print_r($result); // <-- This is an associative array
echo json_encode($result); // <-- this returns valid JSON

这给了我以下结果:

// print_r result
Array
(
    [logo_url] => http://mysite.com/uploads/gallery/7f/3b/f65ab8165d_logo.jpeg
    [img_id] => 54
    [feedback] => Array
        (
            [message] => File uploaded
            [success] => 1
        )

)

// Echo result
{"logo_url":"http:\/\/mysite.com\/uploads\/gallery\/7f\/3b\/f65ab8165d_logo.jpeg","img_id":"54","feedback":{"message":"File uploaded","success":true}}

有人可以告诉我为什么json_encode添加斜线吗?

Can anyone tell me why json_encode adds slashes?

更新

@Quentin说json_encode和.parseJSON之间发生了某些事情，他是对的.

@Quentin said that something is happening between json_encode and .parseJSON and he's right.

执行alert(data.toSource());给我以下结果:

({response:"{\"logo_url\":\"http:\\/\\/storelocator.com\\/wp-content\\/uploads\\/gallery\\/7f\\/3b\\/71b9520cfc91a90afbdbbfc9d2b2239b_logo.jpeg\",\"img_id\":\"62\",\"feedback\":{\"message\":\"File uploaded\",\"success\":true}}", status:200})

这不是有效的JSON.它还添加了status:200，我不知道它来自哪里.

And this is not valid JSON. It also adds the status:200 and I have no idea where this comes from.

Plupload bind是否会对我返回的数据有所帮助?

Could it be that the Plupload bind does something to my returned data?

这是我的js脚本:

  uploader.bind('FileUploaded', function(up, file, data) {
    alert(data.toSource());
    $('#' + file.id + " b").html("100%");
  });

推荐答案

有人可以告诉我为什么json_encode添加斜线吗?

Can anyone tell me why json_encode adds slashes?

正斜杠字符嵌入到HTML脚本元素中时，可能会导致问题(在<之前触发脚本元素结尾"的SGML规则).为防患于未然.

Forward slash characters can cause issues (when preceded by a < it triggers the SGML rules for "end of script element") when embedded in an HTML script element. They are escaped as a precaution.

因为当我尝试使用jQuery.parseJSON(response);在我的js脚本中，它返回null.所以我想这与斜杠有关.

Because when I try do use jQuery.parseJSON(response); in my js script, it returns null. So my guess it has something to do with the slashes.

不是.在JSON中，"/"和"\/"是等效的.

It doesn't. In JSON "/" and "\/" are equivalent.

您在问题中列出的JSON有效(您可以使用 jsonlint 进行测试).您的问题可能与json_encode和parseJSON之间发生的事情有关.

The JSON you list in the question is valid (you can test it with jsonlint). Your problem is likely to do with what happens to it between json_encode and parseJSON.

这篇关于为什么json_encode添加反斜杠?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！