json_decode + json_encode组合未创建原始JSON

Question

我有一些通过API调用获得的JSON，我在其上运行json_decode ，从中获取一个数组，然后使用json_encode重新对其进行编码。 但是结果不是相同的JSON。 弄乱了网址。 如何使其正确编码？

原版的

{"created_at":"Mon, 19 Mar 2012 01:34:41 +0000","entities":{"hashtags":[{"text":"stanford","indices":[23,32]}],"urls":[{"url":"http:\/\/t.co\/Of4z6jKG","expanded_url":"http:\/\/360.io\/5sZc2T","display_url":"360.io\/5sZc2T","indices":[33,53]}],"user_mentions":[]},"from_user":"rayfk","from_user_id":335143881,"from_user_id_str":"335143881","from_user_name":"Raymond Kennedy","geo":{"coordinates":[37.4227,-122.1753],"type":"Point"},"id":181554251733020673,"id_str":"181554251733020673","iso_language_code":"en","metadata":{"result_type":"recent"},"profile_image_url":"http:\/\/a0.twimg.com\/profile_images\/1468102095\/image_normal.jpg","profile_image_url_https":"https:\/\/si0.twimg.com\/profile_images\/1468102095\/image_normal.jpg","source":"<a href="http:\/\/www.occipital.com\/360\/app" rel="nofollow">360 Panorama<\/a>","text":"View from mid lake log #stanford http:\/\/t.co\/Of4z6jKG","to_user":null,"to_user_id":null,"to_user_id_str":null,"to_user_name":null}

解码/编码组合后

{"created_at":"Mon, 19 Mar 2012 01:34:41 +0000","entities":{"hashtags":[{"text":"stanford","indices":[23,32]}],"urls":[{"url":"http:\/\/t.co\/Of4z6jKG","expanded_url":"http:\/\/360.io\/5sZc2T","display_url":"360.io\/5sZc2T","indices":[33,53]}],"user_mentions":[]},"from_user":"rayfk","from_user_id":335143881,"from_user_id_str":"335143881","from_user_name":"Raymond Kennedy","geo":{"coordinates":[37.4227,-122.1753],"type":"Point"},"id":181554251733020673,"id_str":"181554251733020673","iso_language_code":"en","metadata":{"result_type":"recent"},"profile_image_url":"http:\/\/a0.twimg.com\/profile_images\/1468102095\/image_normal.jpg","profile_image_url_https":"https:\/\/si0.twimg.com\/profile_images\/1468102095\/image_normal.jpg","source":"<a href="http:\/\/www.occipital.com\/360\/app" rel="nofollow">360 Panorama<\/a>","text":"View from mid lake log #stanford http:\/\/t.co\/Of4z6jKG","to_user":null,"to_user_id":null,"to_user_id_str":null,"to_user_name":null}

这些是完整的摘要，但罪魁祸首是：

原始的 "source":"<a href="http:\\/\\/www.occipital.com\\/360\\/app" rel="nofollow">360 Panorama<\\/a>"

在 "source":"<a href="http:\\/\\/www.occipital.com\\/360\\/app" rel="nofollow">360 Panorama<\\/a>"

Answer 1

我不知道是什么原因造成，但你可以通过应用纠正html_entity_decode（）版后功能的。 这会改变诸如< 或" 回到其原始形式。

根据它对报价的影响方式，您可以传递一些标志来获得所需的结果。

• ENT_COMPAT：将转换双引号，不理会单引号。
• ENT_QUOTES：将转换双引号和单引号。
• ENT_NOQUOTES：将双引号和单引号保持不变。

[编辑]

通过此函数运行损坏的JSON：

function fixDoubleQuotedJSON($broken_json)
{
   return str_replace('"','\\"',$broken_json);
}

Answer 2

http://codepad.org/DMkAS2iR

他们似乎是平等的，除了在一个例外的地方：

before: "id":181554251733020673,"id_str"
after:  "id":181554251733020000,"id_str"

经过“无损” json转换后，这些id不会真正匹配，并且PHP 5.4支持JSON_BIGINT_AS_STRING选项。

顺便说一下，Codepad的php版本是5.2.5。