解析错误:语法错误，意外的 T_OBJECT_OPERATOR [英] Parse error: syntax error, unexpected T_OBJECT_OPERATOR

问题描述

尝试将 myXml.xml 中的一些数据添加到字符串时，出现以下错误:解析错误:语法错误，意外的 T_OBJECT_OPERATOR.

I'm getting the following error when trying to add some data from myXml.xml to a string: Parse error: syntax error, unexpected T_OBJECT_OPERATOR.

    $xmlstr = file_get_contents('myXml.xml');
    $xml = new SimpleXMLElement($xmlstr); 

    foreach($xml->order as $order){
            $replace = array();
            $firstName = (string) $order->billing-address->first-name;
            $lastName = (string) $order->billing-address->last-name;
    }

我无法直接提供我的 XML，因为它包含敏感数据.

I can't provide my XML directly as it contains sensitive data.

谢谢，山姆

推荐答案

- 符号表示减法.要在属性名称中使用它，您必须使用以下语法:

The - sign means subtraction. To use it in property names, you must use this syntax:

$firstName = (string) $order->{"billing-address"}->{"first-name"};
$lastName = (string) $order->{"billing-address"}->{"last-name"};

一般来说，最好使用 firstName、billingAddress 等作为属性名称来避免这种情况.请参阅CamelCase.但是，在这种情况下，您可能无法控制 XML 输入.

In general, it's probably better to use firstName, billingAddress, etc. as property names to avoid this. See CamelCase. In this case, however, you may have no control over the the XML input.

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