有关php 做web services问题 ，请大家解答！

RequestHeader :
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 POST /soap/server.php HTTP/1.1 Host: localhost Connection: Keep-Alive User-Agent: PHP SOAP 0.1 Content-Type: text/xml; charset=utf-8 SOAPAction: "http://localhost/soap/MyTest" Content-Length: 262 
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Request :
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 <?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://localhost/soap/"><SOAP-ENV:Body><ns1:MyTest><ns1:UserID>14000019</ns1:UserID></ns1:MyTest></SOAP-ENV:Body></SOAP-ENV:Envelope> 
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ResponseHeader :
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 HTTP/1.1 400 Bad Request Content-Type: text/html Date: Fri, 09 Dec 2005 07:08:22 GMT Connection: close Content-Length: 39 
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Response:
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 <h1>Bad Request (Invalid Hostname)</h1> 你的程序输出以上结果，难道不对吗？(php5.0.3)