关于javascript：将字符串数据转换为JSON格式


turn string data into json format

本问题已经有最佳答案，请猛点这里访问。
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note:
 {"category_id":"1","name":"Notes","icon":"images\/note.png"},
quote:
 {"category_id":"2","name":"Quotes","icon":"images\/quote.png"},
project:
 {"category_id":"3","name":"Projects","icon":"images\/project.png"},
skill:
 {"category_id":"4","name":"Skills","icon":"images\/skill.png"}

这是我的控制台中显示的内容。我使用json_decode进行查询，并用字符串连接，我认为这是问题的原因。

那么如何将字符串数据转换成JSON格式呢？

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如果这是绳子，那么我建议用{包起来…}并使用'json.parse。即。：

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var json = JSON.parse('{' + string + '}');

当然，您需要将json lib helper添加到您的页面https://github.com/douglascorkford/json-js中。

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我认为你对php有问题，而不是对javascript有问题：

您已经用json_decode在php对象中解码了一个用于trasform的json字符串。但现在您必须以良好格式的JSON字符串返回它。

但首先，对于JSON标准(在PHP中)，您的字符串无效：

  • 把你的绳子放进去{

  • 属性的名称note、quote、project、skill必须封装在"中。，新字符串：

    {"note"："category_id"："1"，"name"："notes"，"icon"："images/note.png"，"quote"："category_id"："2"，"name"："quotes"，"icon"："images/quote.png"，"project""category_id"："3"，"name"："projects"，"icon"："images/project.png"，"skill"："category_id"："4"，"name"："skills"，"icon"："images/skill.png"}

    • 现在看看下面这个用PHP编写的JSON编码示例：

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    $yourString = '{"note":{"category_id":"1","name":"Notes","icon":"images\/note.png"},"quote":{"category_id":"2","name":"Quotes","icon":"images\/quote.png"},"project":{"category_id":"3","name":"Projects","icon":"images\/project.png"},"skill":{"category_id":"4","name":"Skills","icon":"images\/skill.png"}}';
    $JSON_FOR_PHP = json_decode($yourString);
    $JSON_FOR_JS = json_encode($JSON_FOR_PHP);

    /* response: */
    echo"JSON for PHP (associative Array):";
    var_dump($JSON_FOR_PHP);
    echo"";
    echo"JSON for JAVASCRIPT (JSON string {add content type: application/json}):";
    echo $JSON_FOR_JS;

    回应：

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    JSON for PHP (associative Array):

    object(stdClass)#1 (4) { ["note"]=> object(stdClass)#2 (3) { ["category_id"]=> string(1)"1" ["name"]=> string(5)"Notes" ["icon"]=> string(15)"images/note.png" } ["quote"]=> object(stdClass)#3 (3) { ["category_id"]=> string(1)"2" ["name"]=> string(6)"Quotes" ["icon"]=> string(16)"images/quote.png" } ["project"]=> object(stdClass)#4 (3) { ["category_id"]=> string(1)"3" ["name"]=> string(8)"Projects" ["icon"]=> string(18)"images/project.png" } ["skill"]=> object(stdClass)#5 (3) { ["category_id"]=> string(1)"4" ["name"]=> string(6)"Skills" ["icon"]=> string(16)"images/skill.png" } }

    JSON for JAVASCRIPT (JSON string {add content type: text/json}):

    {"note":{"category_id":"1","name":"Notes","icon":"images\/note.png"},"quote":{"category_id":"2","name":"Quotes","icon":"images\/quote.png"},"project":{"category_id":"3","name":"Projects","icon":"images\/project.png"},"skill":{"category_id":"4","name":"Skills","icon":"images\/skill.png"}}

    如果只回送$JSON_FOR_JS并将内容类型更改为application/json，则得到的响应是一个有效的json字符串，可以用javascript中的JSON.parse()进行解析：

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

    或者直接将其回送到JS脚本中(HTML页或.JS文件中不带脚本标记)：

    var js_json=json.parse()；

    现在在JavaScript中，您有一个对象JS_json，其中包含字符串的内容。

    您可以使用JSON.parse(string)，这将从字符串中返回一个json。

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