PHP调用WebService接口，谁给看下这段代码是什么意思呢？

$document=$proxy->document;echo <<<soapdocument<?xml version="”1.0″" encoding="”GB2312″?"><soap-env:envelope soap-env:encodingstyle="”http://schemas.xmlsoap.org/soap/encoding/”" xmlns:soap-env="”http://schemas.xmlsoap.org/soap/envelope/”" xmlns:xsd="”http://www.w3.org/2001/XMLSchema”" xmlns:xsi="”http://www.w3.org/2001/XMLSchema-instance”" xmlns:soap-enc="”http://schemas.xmlsoap.org/soap/encoding/”" xmlns:si="”http://soapinterop.org/xsd“"><soap-env:body>$document</soap-env:body></soap-env:envelope>SoapDocument;</soapdocument<?xml>

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回复讨论(解决方案)

把被 SoapDocument 括起的内容作为一个字符串输出

在启用了短标记的情况下

?>
?>
将产生语法错误！