PHP JSON字符串，为JS输出转义双引号

I'm creating a JSON string from a PHP array. I've encoded it using json_encode().

我正在从PHP数组创建一个JSON字符串。我已经使用json_encode()对它进行了编码。

$data = array(
    'title' => 'Example string\'s with "special" characters'
);

$data = json_encode( $data );

$data is localized using wp_localize_script() and is accessible via a global data variable.

$data使用wp_localize_script()进行本地化，可以通过全局数据变量访问。

In the JS file I can access the information by the following:

在JS文件中，我可以通过以下方式获取信息:

var data     = data.replace( /&quot;/g, '"' ),
    jsonData = jQuery.parseJSON( data );

console.log( jsonData );

This results in an output of:

这导致输出:

{ "title":"Example string's with "special" characters" }

Entering that result into http://jsonlint.com/ returns an error. Removing the double quotes around "special" validates the string.

将结果输入http://jsonlint.com/会返回一个错误。删除“special”周围的双引号将验证字符串。

What is the best way to create a JSON string from PHP and properly escape it for use in a JS file?

从PHP创建JSON字符串并正确转义以在JS文件中使用的最佳方式是什么?

5 个解决方案

#1

From http://www.php.net/manual/en/function.json-encode.php#100565

从http://www.php.net/manual/en/function.json-encode.php # 100565

That said, quotes " will produce invalid JSON, but this is only an issue if you're using json_encode() and just expect PHP to magically escape your quotes. You need to do the escaping yourself.

也就是说，引号“将产生无效的JSON，但这只是在使用json_encode()并期望PHP能够神奇地转义引号时才会出现的问题。”你需要自己逃离。

#2

Another way would be to encode the quotes using htmlspecialchars:

另一种方法是使用htmlspecialchars对引号进行编码:

$json_array = array(
    'title' => 'Example string\'s with "special" characters'
);

$json_decode = htmlspecialchars(json_encode($json_array), ENT_QUOTES, 'UTF-8');

#3

I succefully just did this :

我成功地做到了:

$json = str_replace("\u0022","\\\\\"",json_encode( $phpArray,JSON_HEX_QUOT));

json_encode() by default will escape " to \" . But it's still wrong JSON for json.PARSE(). So by adding option JSON_HEX_QUOT, json_encode() will replace " with \u0022. json.PARSE() still will not like \u0022. So then we need to replace \u0022 with \\". The \\\\\" is escaped \\".

json_encode()默认情况下将转义为“到\”。但是对于json.PARSE()，它仍然是错误的JSON。因此，通过添加option JSON_HEX_QUOT, json_encode()将替换为\u0022。parse()仍然不喜欢\u0022。\\\\\ \“已脱离\\”

NOTE : you can add option JSON_HEX_APOS to replace single quote with unicode HEX value if you have javascript single quote issue.

注意:如果存在javascript单引号问题，可以添加选项JSON_HEX_APOS，用unicode十六进制值替换单引号。

ex: json_encode( $phpArray, JSON_HEX_APOS|JSON_HEX_QUOT ));

例如:json_encode($phpArray, JSON_HEX_APOS|JSON_HEX_QUOT);

#4

Use json_encode($json_array, JSON_HEX_QUOT); since php 5.3: http://php.net/manual/en/json.constants.php

使用json_encode()美元json_array JSON_HEX_QUOT);自php 5.3:http://php.net/manual/en/json.constants.php

#5

I just ran into this problem and the actual issue was that I forgot to add a proper application/json header before spitting out the actual JSON data.

我刚刚遇到了这个问题，实际的问题是我忘记添加一个合适的应用程序/json头，然后再输出实际的json数据。

header('Content-Type: application/json');

#1