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使用 PHP 从 XML 获取的 YQL 查询数据将覆盖其他金融股票代码的值

yql query data fetched from xml using php overwrites the value of other financial stock symbols

本文关键字：其他 覆盖 金融股 代码 查询 PHP XML 获取 使用 YQL 数据 | 更新日期: 2023-09-27

这是我用来从雅虎财经股票报价中获取数据的脚本。 但是我在这里遇到了问题......并且无法从我得到的答案中找到解决方案。PHP脚本是...

<?php
session_start();
$yql_base_url = "http://query.yahooapis.com/v1/public/yql";  
$yql_query = "select * from yahoo.finance.quotes where symbol in ('XAUUSD=X','XAGUSD=X','PLN12.NYM','PAK12.NYM','USDCAD=X')";  
$yql_query_url = $yql_base_url . "?q=" . urlencode($yql_query);
$yql_query_url .= "&env=http://datatables.org/alltables.env";
$yql_query_url .= "&format=json";
$session = curl_init($yql_query_url);  
curl_setopt($session, CURLOPT_RETURNTRANSFER,true);      
$json = curl_exec($session);
$phpObj =  json_decode($json);  
if(!is_null($phpObj->query->results)){  
}  
if(!is_null($phpObj->query->results)){  
    foreach($phpObj->query->results->quote as $quotes){  
        $_SESSION['Ask'] = $quotes->Ask;
        $_SESSION['Bid'] = $quotes->Bid;
        $_SESSION['AskRealtime'] = $quotes->AskRealtime;
        $_SESSION['BidRealtime'] = $quotes->BidRealtime;
        $_SESSION['LastTradeDate'] = $quotes->LastTradeDate;
        $_SESSION['LastTradePriceOnly'] = $quotes->LastTradePriceOnly;
        $_SESSION['LastTradeTime'] = $quotes->LastTradeTime;
  }  
}  
?>

我打印会话的显示部分或正文部分是...

    <body>
    <div>
    <ul>
    <li>Gold Price</li>
    <li><?php echo $_SESSION['Ask'];?></li>
    <li><?php echo $_SESSION['Bid'];?></li>
    <li><?php echo $_SESSION['AskRealtime'];?></li>
    <li><?php echo $_SESSION['BidRealtime'];?></li>
    <li><?php echo $_SESSION['LastTradeDate'];?></li>
    <li><?php echo $_SESSION['LastTradePriceOnly'];?></li>
    <li><?php echo $_SESSION['LastTradeTime'];?></li>
    </ul>
    <ul>
    <li>Silver Price</li>
    <li><?php echo $_SESSION['Ask_2'];?></li>
    <li><?php echo $_SESSION['Bid_2'];?></li>
    <li><?php echo $_SESSION['AskRealtime_2'];?></li>
    <li><?php echo $_SESSION['BidRealtime_2'];?></li>
    <li><?php echo $_SESSION['LastTradeDate_2'];?></li>
    <li><?php echo $_SESSION['LastTradePriceOnly_2'];?></li>
    <li><?php echo $_SESSION['LastTradeTime_2'];?></li>
    </ul>
    <ul>
    <li>Platinum Price</li>
    <li><?php echo $_SESSION['Ask_3'];?></li>
    <li><?php echo $_SESSION['Bid_3'];?></li>
    <li><?php echo $_SESSION['AskRealtime_3'];?></li>
    <li><?php echo $_SESSION['BidRealtime_3'];?></li>
    <li><?php echo $_SESSION['LastTradeDate_3'];?></li>
    <li><?php echo $_SESSION['LastTradePriceOnly_3'];?></li>
    <li><?php echo $_SESSION['LastTradeTime_3'];?></li>
    </ul>
    <ul>
    <li>Palladium Price</li>
    <li><?php echo $_SESSION['Ask_3'];?></li>
    <li><?php echo $_SESSION['Bid_3'];?></li>
    <li><?php echo $_SESSION['AskRealtime_3'];?></li>
    <li><?php echo $_SESSION['BidRealtime_3'];?></li>
    <li><?php echo $_SESSION['LastTradeDate_3'];?></li>
    <li><?php echo $_SESSION['LastTradePriceOnly_3'];?></li>
    <li><?php echo $_SESSION['LastTradeTime_3'];?></li>
    </ul>
    <ul>
    <li>USD to CAD</li>
    <li><?php echo $_SESSION['Ask_3'];?></li>
    <li><?php echo $_SESSION['Bid_3'];?></li>
    <li><?php echo $_SESSION['AskRealtime_3'];?></li>
    <li><?php echo $_SESSION['BidRealtime_3'];?></li>
    <li><?php echo $_SESSION['LastTradeDate_3'];?></li>
    <li><?php echo $_SESSION['LastTradePriceOnly_3'];?></li>
    <li><?php echo $_SESSION['LastTradeTime_3'];?></li>
    </ul>
    </div>
    </body>

但是我从上面得到的结果是..
1.0015
1.0005
2012
/5/11 1.001 下午
5：55

这只是 $yql_query ="从...'PLN12中选择*"的"USDCAD=X"的会话输出。NYM'，'PAK12.NYM'，'USDCAD=X'）";

查询是..

$yql_query = "select * from yahoo.finance.quotes where symbol in ('XAUUSD=X','XAGUSD=X','PLN12.NYM','PAK12.NYM','USDCAD=X')";
雅

虎网站引用的雅虎财经报价的XML输出是。

<query yahoo:count="5" yahoo:created="2012-05-12T22:01:43Z" yahoo:lang="en-US">
<diagnostics>
  <publiclyCallable>true</publiclyCallable>
  <redirect from="http://datatables.org/alltables.env" status="301">http://www.datatables.org/alltables.env</redirect>
  <url execution-start-time="417" execution-stop-time="775" execution-time="358" proxy="DEFAULT">http://datatables.org/alltables.env</url>
  <url execution-start-time="826" execution-stop-time="1040" execution-time="214" proxy="DEFAULT">http://www.datatables.org/yahoo/finance/yahoo.finance.quotes.xml</url>
  <url execution-start-time="1247" execution-stop-time="1261" execution-time="14" proxy="DEFAULT">http://download.finance.yahoo.com/d/quotes.csv?f=aa2bb2b3b4cc1c3c6c8dd1d2ee1e7e8e9ghjkg1g3g4g5g6ii5j1j3j4j5j6k1k2k4k5ll1l2l3mm2m3m4m5m6m7m8nn4opp1p2p5p6qrr1r2r5r6r7ss1s7t1t7t8vv1v7ww1w4xy&s=XAUUSD%3DX,XAGUSD%3DX,PLN12.NYM,PAK12.NYM,USDCAD%3DX</url>
  <query execution-start-time="1045" execution-stop-time="1261" execution-time="216" params="{url=[http://download.finance.yahoo.com/d/quotes.csv?f=aa2bb2b3b4cc1c3c6c8dd1d2ee1e7e8e9ghjkg1g3g4g5g6ii5j1j3j4j5j6k1k2k4k5ll1l2l3mm2m3m4m5m6m7m8nn4opp1p2p5p6qrr1r2r5r6r7ss1s7t1t7t8vv1v7ww1w4xy&s=XAUUSD%3DX,XAGUSD%3DX,PLN12.NYM,PAK12.NYM,USDCAD%3DX]}">select * from csv where url=@url and columns='Ask,AverageDailyVolume,Bid,AskRealtime,BidRealtime,BookValue,Change&PercentChange,Change,Commission,ChangeRealtime,AfterHoursChangeRealtime,DividendShare,LastTradeDate,TradeDate,EarningsShare,ErrorIndicationreturnedforsymbolchangedinvalid,EPSEstimateCurrentYear,EPSEstimateNextYear,EPSEstimateNextQuarter,DaysLow,DaysHigh,YearLow,YearHigh,HoldingsGainPercent,AnnualizedGain,HoldingsGain,HoldingsGainPercentRealtime,HoldingsGainRealtime,MoreInfo,OrderBookRealtime,MarketCapitalization,MarketCapRealtime,EBITDA,ChangeFromYearLow,PercentChangeFromYearLow,LastTradeRealtimeWithTime,ChangePercentRealtime,ChangeFromYearHigh,PercebtChangeFromYearHigh,LastTradeWithTime,LastTradePriceOnly,HighLimit,LowLimit,DaysRange,DaysRangeRealtime,FiftydayMovingAverage,TwoHundreddayMovingAverage,ChangeFromTwoHundreddayMovingAverage,PercentChangeFromTwoHundreddayMovingAverage,ChangeFromFiftydayMovingAverage,PercentChangeFromFiftydayMovingAverage,Name,Notes,Open,PreviousClose,PricePaid,ChangeinPercent,PriceSales,PriceBook,ExDividendDate,PERatio,DividendPayDate,PERatioRealtime,PEGRatio,PriceEPSEstimateCurrentYear,PriceEPSEstimateNextYear,Symbol,SharesOwned,ShortRatio,LastTradeTime,TickerTrend,OneyrTargetPrice,Volume,HoldingsValue,HoldingsValueRealtime,YearRange,DaysValueChange,DaysValueChangeRealtime,StockExchange,DividendYield'</query>
  <javascript execution-time="279" instructions-used="302744" table-name="yahoo.finance.quotes"/>
  <warning>Unable to sort response according to field 'Ask,Bid,AskRealtime,BidRealtime,LastTradeDate,LastTradePriceOnly,LastTradeTime'.</warning>
  <user-time>1326</user-time>
  <service-time>586</service-time>
  <build-version>27222</build-version>
</diagnostics>
<results>
<quote symbol="XAUUSD=X">
  <Bid>1585.30</Bid>
  <AskRealtime/>
  <BidRealtime/>
  <LastTradeDate>5/11/2012</LastTradeDate>
  <LastTradePriceOnly>1580.3002</LastTradePriceOnly>
  <LastTradeTime>5:15pm</LastTradeTime>
  <Ask>1575.30</Ask>
</quote>
<quote symbol="XAGUSD=X">
  <Bid/>
  <AskRealtime/>
  <BidRealtime/>
  <LastTradeDate>5/11/2012</LastTradeDate>
  <LastTradePriceOnly>28.858</LastTradePriceOnly>
  <LastTradeTime>5:39pm</LastTradeTime>
  <Ask/>
</quote>
<quote symbol="PLN12.NYM">
  <Bid/>
  <AskRealtime>1478.60</AskRealtime>
  <BidRealtime>1462.90</BidRealtime>
  <LastTradeDate>5/11/2012</LastTradeDate>
  <LastTradePriceOnly>1465.30</LastTradePriceOnly>
  <LastTradeTime>5:02pm</LastTradeTime>
  <Ask/>
</quote>
<quote symbol="PAK12.NYM">
  <Bid/>
  <AskRealtime>0.00</AskRealtime>
  <BidRealtime>0.00</BidRealtime>
  <LastTradeDate>3/23/2012</LastTradeDate>
  <LastTradePriceOnly>658.80</LastTradePriceOnly>
  <LastTradeTime>7:12am</LastTradeTime>
  <Ask/>
</quote>
<quote symbol="USDCAD=X">
  <Bid>1.0005</Bid>
  <AskRealtime/>
  <BidRealtime/>
  <LastTradeDate>5/11/2012</LastTradeDate>
  <LastTradePriceOnly>1.001</LastTradePriceOnly>
  <LastTradeTime>5:55pm</LastTradeTime>
  <Ask>1.0015</Ask>
</quote>

要获得 XML 的清晰视图，请单击此处

我想提取所有要价， 买入价 ， ...以此类推，指定的div。

请提出建议

您没有正确存储数据。您想打印出 $_SESSION['Ask_2']，但它从未设置！相反，在循环中，您不断覆盖 $_SESSION['Ask'] - 您可能想要做的是获取报价符号，然后将数据存储在 $_SESSION[$symbol]['Ask'] 中。

事实上，我建议使用另一个数组来编译数据，然后在其中包含该数组中设置一个会话变量，而不是不断更新会话变量。

你想要一个这样的循环：

foreach($phpObj->query->results->quote as $quote){  
    $mydata[$quote->Symbol]['Ask'] = $quote->Ask;

然后，当您显示结果时，显示自foreach ($mydata as $quote)而不是$_SESSION。最后，您可以说$_SESSION['quotedata'] = $mydata是否要在会话中存储所有内容。

我还建议您将其显示在表格中而不是 .

使用下面的解决方案，您只需从符号列表中添加/减去值，表格就会自动更改。

即，如果您更改了 

$yql_query = "select * from yahoo.finance.quotes where symbol in ('XAUUSD=X','XAGUSD=X','PLN12.NYM','PAK12.NYM','USDCAD=X')";

自

$yql_query = "select * from yahoo.finance.quotes where symbol in ('XAUUSD=X','XAGUSD=X','PLN12.NYM','PAK12.NYM','USDCAD=X','BOOM')";

那么你的表格将只增加一行股票代码 BOOM。我对此进行了测试，它有效。

这是您的数据收集部分，安萨里进行了更正：

$yql_base_url = "http://query.yahooapis.com/v1/public/yql";  
$yql_query = "select * from yahoo.finance.quotes where symbol in ('XAUUSD=X','XAGUSD=X','PLN12.NYM','PAK12.NYM','USDCAD=X')";  
$yql_query_url = $yql_base_url . "?q=" . urlencode($yql_query);
$yql_query_url .= "&env=http://datatables.org/alltables.env";
$yql_query_url .= "&format=json";
$session = curl_init($yql_query_url);  
curl_setopt($session, CURLOPT_RETURNTRANSFER,true);      
$json = curl_exec($session);
$phpObj =  json_decode($json);  
if(!is_null($phpObj->query->results)){ // this does nothing. remove it?
}
if(!is_null($phpObj->query->results)){  
    foreach($phpObj->query->results->quote as $quotes){  
        $mydata[$quotes->Symbol]['Ask'] = $quotes->Ask;
        $mydata[$quotes->Symbol]['Bid'] = $quotes->Bid;
        $mydata[$quotes->Symbol]['AskRealtime'] = $quotes->AskRealtime;
        $mydata[$quotes->Symbol]['BidRealtime'] = $quotes->BidRealtime;
        $mydata[$quotes->Symbol]['LastTradeDate'] = $quotes->LastTradeDate;
        $mydata[$quotes->Symbol]['LastTradePriceOnly'] = $quotes->LastTradePriceOnly;
        $mydata[$quotes->Symbol]['LastTradeTime'] = $quotes->LastTradeTime;
  }
}

这是表格形式的输出：

<table border="1">
<thead>
<tr>
<?php
$head = array('Symbol','Ask','Bid','Ask Realtime','Bid Realtime','Last Trade Date','Last Trade Price','Last Trade Time');
foreach($head as $value) {
    echo '<th>' . $value . '</th>';
}
?>
</tr>
</thead>
<tbody>
<?php
foreach($mydata as $symbol=>$attrib) {
    echo '<tr>';
    echo '<td>' . $symbol . '</td>';
    foreach($attrib as $val) {
        echo '<td>' . $val . '</td>';
    }
    echo '</tr>';
}
?>
</tbody>
</table>
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