【问题标题】:Convert invalid json into valid json将无效的json转换为有效的json
【发布时间】:2012-01-11 07:23:01
【问题描述】:

我正在尝试从 Web 服务器读取 .json 文件。我从服务器收到的 JSON 报告在 http://jsonlint.com/ 无效:

{
    preOpen: "900",
    preClose: "908",
    mktOpen: "915",
    mktClose: "1530",
    corrOpen: "1540",
    corrClose: "1600",
    mktStatusCode: "3",
    status: "MARKET OPEN",
    time: "Jan 11, 2012 12:32:14",
    data: [
        {
            name: "S&P CNX NIFTY Pre Open",
            lastPrice: "4,863.15",
            change: "13.60",
            pChange: "0.28",
            imgFileName: "S&P_CNX_NIFTY_Pre_Open_open.png"
        },
        {
            name: "S&P CNX NIFTY",
            lastPrice: "4,871.15",
            change: "21.60",
            pChange: "0.45",
            imgFileName: "S&P_CNX_NIFTY_open.png"
        },
        {
            name: "CNX NIFTY JUNIOR",
            lastPrice: "8,940.05",
            change: "91.90",
            pChange: "1.04",
            imgFileName: "CNX_NIFTY_JUNIOR_open.png"
        },
        {
            name: "BANK NIFTY",
            lastPrice: "8,816.15",
            change: "81.10",
            pChange: "0.93",
            imgFileName: "BANK_NIFTY_open.png"
        },
        {
            name: "INDIA VIX",
            lastPrice: "24.18",
            change: "0.18",
            pChange: "0.75",
            imgFileName: "INDIA_VIX_open.png"
        },
        {
            name: "CNX 100",
            lastPrice: "4,729.25",
            change: "25.05",
            pChange: "0.53",
            imgFileName: "CNX_100_open.png"
        },
        {
            name: "S&P CNX DEFTY",
            lastPrice: "3,265.00",
            change: "41.70",
            pChange: "1.29",
            imgFileName: "S&P_CNX_DEFTY_open.png"
        },
        {
            name: "S&P CNX 500",
            lastPrice: "3,811.75",
            change: "26.40",
            pChange: "0.70",
            imgFileName: "S&P_CNX_500_open.png"
        },
        {
            name: "CNX MIDCAP",
            lastPrice: "6,548.20",
            change: "80.65",
            pChange: "1.25",
            imgFileName: "CNX_MIDCAP_open.png"
        },
        {
            name: "NIFTY MIDCAP 50",
            lastPrice: "1,937.20",
            change: "21.30",
            pChange: "1.11",
            imgFileName: "NIFTY_MIDCAP_50_open.png"
        },
        {
            name: "CNX INFRA",
            lastPrice: "2,273.60",
            change: "8.50",
            pChange: "0.38",
            imgFileName: "CNX_INFRA_open.png"
        },
        {
            name: "CNX REALTY",
            lastPrice: "207.85",
            change: "8.10",
            pChange: "4.06",
            imgFileName: "CNX_REALTY_open.png"
        },
        {
            name: "CNX ENERGY",
            lastPrice: "7,300.55",
            change: "37.10",
            pChange: "0.51",
            imgFileName: "CNX_ENERGY_open.png"
        },
        {
            name: "CNX FMCG",
            lastPrice: "10,308.90",
            change: "10.90",
            pChange: "0.11",
            imgFileName: "CNX_FMCG_open.png"
        },
        {
            name: "CNX MNC",
            lastPrice: "4,660.35",
            change: "30.40",
            pChange: "0.66",
            imgFileName: "CNX_MNC_open.png"
        },
        {
            name: "CNX PHARMA",
            lastPrice: "4,743.15",
            change: "-4.15",
            pChange: "-0.09",
            imgFileName: "CNX_PHARMA_open.png"
        },
        {
            name: "CNX PSE",
            lastPrice: "2,753.90",
            change: "14.60",
            pChange: "0.53",
            imgFileName: "CNX_PSE_open.png"
        },
        {
            name: "CNX PSU BANK",
            lastPrice: "2,847.95",
            change: "22.80",
            pChange: "0.81",
            imgFileName: "CNX_PSU_BANK_open.png"
        },
        {
            name: "CNX SERVICE",
            lastPrice: "5,933.65",
            change: "21.65",
            pChange: "0.37",
            imgFileName: "CNX_SERVICE_open.png"
        },
        {
            name: "CNX IT",
            lastPrice: "6,300.35",
            change: "-31.40",
            pChange: "-0.50",
            imgFileName: "CNX_IT_open.png"
        },
        {
            name: "CNX SMALLCAP",
            lastPrice: "2,981.80",
            change: "49.85",
            pChange: "1.70",
            imgFileName: "CNX_SMALLCAP_open.png"
        },
        {
            name: "CNX 200",
            lastPrice: "2,432.05",
            change: "14.35",
            pChange: "0.59",
            imgFileName: "CNX_200_open.png"
        },
        {
            name: "CNX AUTO",
            lastPrice: "3,497.60",
            change: "4.05",
            pChange: "0.12",
            imgFileName: "CNX_AUTO_open.png"
        },
        {
            name: "CNX MEDIA",
            lastPrice: "1,147.30",
            change: "23.35",
            pChange: "2.08",
            imgFileName: "CNX_MEDIA_open.png"
        },
        {
            name: "CNX METAL",
            lastPrice: "2,746.95",
            change: "60.60",
            pChange: "2.26",
            imgFileName: "CNX_METAL_open.png"
        }
    ]
}

显示如下测试结果:

Parse error on line 1:
{    preOpen: "900",    
-----^
Expecting 'STRING', '}'

如何在使用 PHP 解析之前将其转换为 VALID JSON??

【问题讨论】:

  • 键必须用双引号括起来 - 所以 preOpen: "900" 必须是 "preOpen": "900",以此类推。如果您无法控制 json 源,则不确定如何修复它。您可以使用正则表达式 - 在冒号前查找单个单词并将其包含在双引号中。

标签: php json


【解决方案1】:

所有keys (preOpen, preClose, ...) 都必须是字符串,所以它们需要双引号。

{
    "preOpen": "900",
    "preClose": "908",
    ...
}

=== 更新 ===

如果您的 Json-String 无效,您可以使用以下脚本对其进行转换:

$sInvalidJson = '{
    preOpen: "900",
    preClose: "908"
}';
$sValidJson = preg_replace("/(\n[\t ]*)([^\t ]+):/", "$1\"$2\":", $sInvalidJson);

另见example

(此脚本仅适用于上述无效 JSON,否则必须更改模式。)

=== 更新 ===

$sInvalidJson = '{preOpen:"900",preClose:"908",mktOpen:"915",mktClose:"1530",corrOpen:"1540",corrClose:"1600",mktStatusCode:"3",status:"MARKET OPEN",time:"Jan 11, 2012 14:25:15",data:[{name:"S&P CNX NIFTY Pre Open",lastPrice:"4,863.15",change:"13.60",pChange:"0.28",imgFileName:"S&P_CNX_NIFTY_Pre_Open_open.png"},{name:"S&P CNX NIFTY",lastPrice:"4,847.85",change:"-1.70",pChange:"-0.04",imgFileName:"S&P_CNX_NIFTY_open.png"},{name:"CNX NIFTY JUNIOR",lastPrice:"8,917.00",change:"68.85",pChange:"0.78",imgFileName:"CNX_NIFTY_JUNIOR_open.png"},{name:"BANK NIFTY",lastPrice:"8,768.75",change:"33.70",pChange:"0.39",imgFileName:"BANK_NIFTY_open.png"},{name:"INDIA VIX",lastPrice:"24.61",change:"0.61",pChange:"2.54",imgFileName:"INDIA_VIX_open.png"},{name:"CNX 100",lastPrice:"4,707.85",change:"3.65",pChange:"0.08",imgFileName:"CNX_100_open.png"},{name:"S&P CNX DEFTY",lastPrice:"3,253.50",change:"30.20",pChange:"0.94",imgFileName:"S&P_CNX_DEFTY_open.png"},{name:"S&P CNX 500",lastPrice:"3,795.40",change:"10.05",pChange:"0.27",imgFileName:"S&P_CNX_500_open.png"},{name:"CNX MIDCAP",lastPrice:"6,524.90",change:"57.35",pChange:"0.89",imgFileName:"CNX_MIDCAP_open.png"},{name:"NIFTY MIDCAP 50",lastPrice:"1,926.55",change:"10.65",pChange:"0.56",imgFileName:"NIFTY_MIDCAP_50_open.png"},{name:"CNX INFRA",lastPrice:"2,262.05",change:"-3.05",pChange:"-0.13",imgFileName:"CNX_INFRA_open.png"},{name:"CNX REALTY",lastPrice:"207.70",change:"7.95",pChange:"3.98",imgFileName:"CNX_REALTY_open.png"},{name:"CNX ENERGY",lastPrice:"7,301.05",change:"37.60",pChange:"0.52",imgFileName:"CNX_ENERGY_open.png"},{name:"CNX FMCG",lastPrice:"10,235.35",change:"-62.65",pChange:"-0.61",imgFileName:"CNX_FMCG_open.png"},{name:"CNX MNC",lastPrice:"4,631.55",change:"1.60",pChange:"0.03",imgFileName:"CNX_MNC_open.png"},{name:"CNX PHARMA",lastPrice:"4,749.95",change:"2.65",pChange:"0.06",imgFileName:"CNX_PHARMA_open.png"},{name:"CNX PSE",lastPrice:"2,744.85",change:"5.55",pChange:"0.20",imgFileName:"CNX_PSE_open.png"},{name:"CNX PSU BANK",lastPrice:"2,841.10",change:"15.95",pChange:"0.56",imgFileName:"CNX_PSU_BANK_open.png"},{name:"CNX SERVICE",lastPrice:"5,900.60",change:"-11.40",pChange:"-0.19",imgFileName:"CNX_SERVICE_open.png"},{name:"CNX IT",lastPrice:"6,262.10",change:"-69.65",pChange:"-1.10",imgFileName:"CNX_IT_open.png"},{name:"CNX SMALLCAP",lastPrice:"2,963.90",change:"31.95",pChange:"1.09",imgFileName:"CNX_SMALLCAP_open.png"},{name:"CNX 200",lastPrice:"2,421.50",change:"3.80",pChange:"0.16",imgFileName:"CNX_200_open.png"},{name:"CNX AUTO",lastPrice:"3,484.30",change:"-9.25",pChange:"-0.26",imgFileName:"CNX_AUTO_open.png"},{name:"CNX MEDIA",lastPrice:"1,139.60",change:"15.65",pChange:"1.39",imgFileName:"CNX_MEDIA_open.png"},{name:"CNX METAL",lastPrice:"2,726.75",change:"40.40",pChange:"1.50",imgFileName:"CNX_METAL_open.png"}]}';
$sValidJson = preg_replace("/([{,])([a-zA-Z][^: ]+):/", "$1\"$2\":", $sInvalidJson);

还有这个updated example

【讨论】:

  • 非常好的答案。效果很好,除了 time: "Jan 11, 2012 12:32:14", 部分搞砸了。
  • 我使用以下代码没有成功:` $url = 'abc/abc.json'; $session = curl_init($url); curl_setopt($session,CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13'); curl_setopt ($session, CURLOPT_POST, true); curl_setopt($session, CURLOPT_HEADER, false); curl_setopt($session, CURLOPT_RETURNTRANSFER, true); $json = curl_exec($session);回声 $json;回声“”; $sValidJson = preg_replace("/(\n[\t ]*)([^\t ]+):/", "$1\"$2\":", $json); echo $sValidJson;` 我得到了相同的输出!!!!
  • 我认为 json 有点不同(例如换行符),然后该模式不起作用。我需要的正是 json-string 的内容。
  • 你真的需要转换字符串吗?如果您只需要将 json-string 添加到 javascript 输出中,则无需转换它,因为这是有效的 javascript 代码。否则,如果你想在 PHP 中解码 json,你真的应该这样做。然后我需要这个字符串。
  • 这是我需要解析 json 的链接。 JSON我需要在我的 php 文件中解码这个 json。
【解决方案2】:

提供的大多数解决方案都存在许多问题,主要是冒号。

我写了一个 json to array 函数来克服这个问题。

它还会检查 json 字符串周围的圆括号,并在 json_decode 之前将其删除。

函数如下:

function jsonDecode($string, $assoc=true, $fixNames=true){
  if(strpos($string, '(') === 0){
    $string = substr($string, 1, strlen($string) - 2); // remove outer ( and )
  }
  if($fixNames){
    $string = preg_replace("/(?<!\"|'|\w)([a-zA-Z0-9_]+?)(?!\"|'|\w)\s?:/", "\"$1\":", $string);
  }
  return json_decode($string, $assoc);
}

它还检查冒号前的空格并将它们从变量名中排除。

这是我测试的示例字符串:

({style:"border: 5px solid pink;", class:"test", "correct":"value", test:true, var5:"some escaped\" string"})

转换后:

Array
(
    [style] => border: 5px solid pink;
    [class] => test
    [correct] => value
    [test] => 1
    [var5] => some escaped" string
)

到目前为止,它看起来是防弹的。

如果你发现了一个洞,请告诉我。

【讨论】:

    【解决方案3】:

    我相信正确的 JSON 字符串也需要在所有键名周围加上双引号。您显示的是一个有效的 JavaScript 对象,但是当字符串化为 JSON 时,所有键都应该有双引号。

    【讨论】:

    • 是的,通过使用JSON.stringify(eval({ preOpen: "900", ....})),返回有效的JSON。 @Sandy505 但是使用 eval 是危险的,特别是如果数据来自第三方来源,因为您不知道可以传递什么。它也可能是在您的网页中注入的恶意代码。无论如何,这不是 PHP 方面。
    【解决方案4】:

    是的,它的格式不正确 - 键名周围缺少引号。您需要自己将其解析为字符串...或更改服务器上的文件。

    【讨论】:

      【解决方案5】:

      需要引用属性名称。有关示例,请参阅http://json.org/example.html。我会更改服务器以生成正确的 JSON。

      它应该产生类似的东西 { "preOPen": "900", .... }

      【讨论】:

        猜你喜欢
        • 2021-07-27
        • 2018-05-27
        • 2020-05-05
        • 1970-01-01
        • 1970-01-01
        • 2023-03-22
        • 1970-01-01
        • 2016-11-20
        • 1970-01-01
        相关资源
        最近更新 更多