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php - Json 响应数组循环

问题描述

我已经阅读了页面和页面，但我不知道如何继续。我正在尝试从 json 数组中提取价格，但我提供的数据似乎要求我先知道价格？

var_dump(json_decode($resp, true)); $Data= json_decode($resp,true);

    foreach($Data as $jsonDataKey => $jsonDataValue){
        foreach($jsonDataValue as $jsonArrayKey => $jsonArrayValue){
            echo "<hr>Price :".$jsonArrayValue['Price'];
            echo " Date:".$jsonArrayValue['Date'];
        }
    }

array) {   ["status"]=> "SUCCESS"   ["Date"]=>   array(1) {
["2018-11-23"]=>
array() {
  ["115.5"]=>
  array() {
    [0]=>
    array(46) {
      ["Price"]=> float(115.5)
      ["Date"]=> int(1543028400000)
    }
  }
  ["116.0"]=>
  array() {
    [0]=>
    array() {
      ["Price"]=> float(116.0)
      ["Date"]=> int(1543028400000)

foreach($Data as $jsonDataKey => $jsonDataValue){
    foreach($jsonDataValue as $jsonArrayKey => $jsonArrayValue){
        echo "<hr>Price :".$jsonArrayValue['Price'];
        echo " Date:".$jsonArrayValue['Date'];
    }
}

实际 json 的部分片段：

{"symbol":"GLD","status":"SUCCESS","underlying":null,"strategy":"SINGLE","interval":null,"isDelayed":true,"isIndex":false," interestRate":2.64581,"underlyingPrice":115.56,"volatility":29.0,"daysToExpiration":0.0,"callExpDateMap":{"2018-11-23:0":{"115.5":[{"putCall":" CALL","symbol":"GLD_112318C115.5","description":"GLD Nov 23 2018 115.5 Call (Weekly)","exchangeName":"OPR","bid":0.17,"ask":0.28," last":0.22,"mark":0.23,"bidSize":132,"askSize":20,"lastSize":0,"highPrice":0.38,"lowPrice":0.13,"openPrice":0.0,"closePrice":0.53,"totalVolume":351,"tradeDate":null,"tradeTimeInLong":1542995987379,"quoteTimeInLong":1542995999544,"netChange":-0.31,"volatility":-999.0,"delta":1.0, "gamma":0.0,"theta":-0.008,"vega":0.0,"rho":0.003,"openInterest":2231,"timeValue":-0.05,"theoreticalOptionValue":-999.0,"theoreticalVolatility":29.0 ,"optionDeliverablesList":null,"strikePrice":115.5,"expirationDate":1543028400000,"daysToExpiration":0,"expirationType":"S","lastTradingDay":1542949200000,"multiplier":100.0,"settlementType":" ","deliverableNote":"","isIndexOption":null,"percentChange":-58.63,"markChange":-0.31,"markPercentChange":-57.69,"inTheMoney":true,"nonStandard":false,"mini":false}],"116.0":[{"putCall": "CALL","symbol":"GLD_112318C116","description":"GLD Nov 23 2018 116 Call (Weekly)","exchangeName":"OPR","bid":0.0,"ask":0.01,"last ":0.01,"mark":0.01,"bidSize":0,"askSize":692,"lastSize":0,"highPrice":0.11,"lowPrice":0.01,"openPrice":0.0,"closePrice": 0.26,"totalVolume":2167,"tradeDate":null,"tradeTimeInLong":1542995959548,"quoteTimeInLong":1542995984685,"netChange":-0.25,"volatility":0.0,"delta":0.0,"gamma":0.0,"theta":0.0,"vega":0.0,"rho":0.0,"openInterest":2786,"timeValue":0.01,"theoreticalOptionValue":0.0,"theoreticalVolatility" :29.0,"optionDeliverablesList":null,"strikePrice":116.0,"expirationDate":1543028400000,"daysToExpiration":0,"expirationType":"S","lastTradingDay":1542949200000,"multiplier":100.0,"settlementType" :" ","deliverableNote":"","isIndexOption":null,"percentChange":-96.21,"markChange":-0.26,"markPercentChange":-98.1,"inTheMoney":false,"nonStandard":false, "mini":false}]},"2018-11-30:7":{"115.5":[{"putCall":"CALL","symbol":"GLD_113018C115.5","description":"GLD Nov 30 2018 115.5 Call (Weekly)","exchangeName":"OPR","bid":0.77,"ask":0.79," last":0.76,"mark":0.78,"bidSize":22,"askSize":18,"lastSize":0,"highPrice":0.89,"lowPrice":0.73,"openPrice":0.0,"closePrice" :0.94,"totalVolume":217,"tradeDate":null,"tradeTimeInLong":1542995943992,"quoteTimeInLong":1542995999810,"netChange":-0.18,"volatility":9.003,"delta":0.582,"gamma": 0.253,"theta":-0.042,"vega":0.067,"rho":0.015,"openInterest":755,"timeValue":0.49,"theoreticalOptionValue":0.78,"理论波动率":29.0,"optionDeliverablesList":null,"strikePrice":115.5,"expirationDate":1543633200000,"daysToExpiration":7,"expirationType":"S","lastTradingDay":1543554000000,"multiplier":100.0,"结算类型":" ","deliverableNote":"","isIndexOption":null,"percentChange":-19.17,"markChange":-0.16,"markPercentChange":-17.05,"inTheMoney":true,"nonStandard": false,"mini":false}],"116.0":[{"putCall":"CALL","symbol":"GLD_113018C116","description":"GLD 2018 年 11 月 30 日 116 电话（每周）","exchangeName ":"OPR","bid":0.52,"ask":0.55,"last":0.53,"mark":0.54,"bidSize":920,"askSize":18,"lastSize":0,"highPrice":0.63,"lowPrice":0.49,"openPrice":0.0,"closePrice":0.69,"totalVolume ":1278,"tradeDate":null,"tradeTimeInLong":1542995969283,"quoteTimeInLong":1542995999922,"netChange":-0.16,"volatility":9.165,"delta":0.454,"gamma":0.252,"theta" :-0.043,"vega":0.068,"rho":0.011,"openInterest":2948,"timeValue":0.53,"theoreticalOptionValue":0.535,"theoreticalVolatility":29.0,"optionDeliverablesList":null,"strikePrice": 116.0,"expirationDate":1543633200000,"daysToExpiration":7,"expirationType":"S","lastTradingDay":1543554000000,"multiplier":100.0,"settlementType":" ","deliverableNote":"","isIndexOption":null,"percentChange":-23.15,"markChange":-0.15,"markPercentChange":-22.43, "inTheMoney":false,"nonStandard":false,"mini":false}]},"2018-12-07:14":{"115.5":[{"putCall":"CALL","symbol": "GLD_120718C115.5","description":"GLD Dec 7 2018 115.5 Call (Weekly)","exchangeName":"OPR","bid":1.07,"ask":1.1,"last":1.07,"mark ":1.09,"bidSize":496,"askSize":22,"lastSize":0,"highPrice":1.16,"lowPrice":1.07,"openPrice":0.0,"closePrice":1.27,"totalVolume":3,"tradeDate":null,"tradeTimeInLong":1542988161634,"quoteTimeInLong":1542995999922,"netChange":-0.2,"volatility":9.532,"delta":0.569,"gamma":0.176,"theta ":-0.034,"vega":0.092,"rho":0.027,"openInterest":214,"timeValue":0.8,"theoreticalOptionValue":1.085,"theoreticalVolatility":29.0,"optionDeliverablesList":null,"strikePrice" :115.5,"expirationDate":1544238000000,"d"openInterest":214,"timeValue":0.8,"theoreticalOptionValue":1.085,"theoreticalVolatility":29.0,"optionDeliverablesList":null,"strikePrice":115.5,"expirationDate":1544238000000,"d"openInterest":214,"timeValue":0.8,"theoreticalOptionValue":1.085,"theoreticalVolatility":29.0,"optionDeliverablesList":null,"strikePrice":115.5,"expirationDate":1544238000000,"d

标签： phparraysjson

解决方案

您提供的 JSON 中没有“价格”键。但是，我可以看到“symbol”、“status”、“volatility”等。如果 Price 与这些键处于同一级别，您可以通过以下方式访问：

foreach ($data as $value) {
    echo $value["Price"];
}

如果价格更深一层，您可以通过以下方式通过第一级密钥访问：

foreach ($data as $value) {
    echo $value["firstLevel"]["Price"];
}

等等。有几种方法可以可视化 JSON，尝试将其粘贴在这里https://jsonformatter.curiousconcept.com/，您应该能够轻松找到“价格”所在的位置，但我怀疑它是顶级密钥。

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