Question

您好我无法从我的html表单中获取数据。我首先需要知道如何从html表单中正确获取数据。其次为什么这不起作用？当我点击“IBM Quote”时，我需要获得值“IBM”。

<!DOCTYPE html>
<html>
<head>
    <title>Stock Quote</title>

</head>
<body>

<form action="soapTest.php" method="post">

    <button name="IBM" type="submit">IBM Quote</button>

</form>



</body>
</html>

Php Code

<?php
$wsdl = "http://www.restfulwebservices.net/wcf/StockQuoteService.svc?wsdl";

$client = new SoapClient($wsdl);
$stock = $_POST["button"];
print $stock;
$parameters= array("request"=>$stock);
$values = $client->GetStockQuote($parameters);
$xml = $values->GetStockQuoteResult;
$currentprice = $xml->Last;
$volume=$xml->Volume;
$percentageChange=$xml->PercentageChange;


if($volume!=null)
    print "<br />\n Volume: $volume";
else 
    print "Volume not set";

if($percentageChange!=null)

    print "<br />\n PercentageChange: $percentageChange";
else 
    print "percentageChange not set";

?>

输出：

Notice: Undefined index: button in /Applications/XAMPP/xamppfiles/htdocs/soapTest.php on line 6

Fatal error: Uncaught SoapFault exception: [a:InternalServiceFault] Object reference not set to an instance of an object. in /Applications/XAMPP/xamppfiles/htdocs/soapTest.php:9 Stack trace: #0 /Applications/XAMPP/xamppfiles/htdocs/soapTest.php(9): SoapClient->__call('GetStockQuote', Array) #1 /Applications/XAMPP/xamppfiles/htdocs/soapTest.php(9): SoapClient->GetStockQuote(Array) #2 {main} thrown in /Applications/XAMPP/xamppfiles/htdocs/soapTest.php on line 9

Answer 1

"IBM"是您的按钮名称，因此您必须按该名称调用帖子值。

$stock = $_POST['IBM'];

或者，您可以更改html代码并为按钮指定名称按钮，其值为IBM。

<button name="button" value="IBM" type="submit">IBM Quote</button>

$ _POST没有从html获取数据

1 个答案: