PHP SOAP Server以某种方式在XML之前添加了一个LF

Question

我有一个小型SOAP应用程序，通常在每台服务器上都能正常工作。现在我将它安装在PHP / 5.5.9-1ubuntu4.14上，并在结果前面添加换行符。 我的相应系统无法解析错误的xml并生成错误：

The XML or Text declaration must start at line/column 1/1

我现在绝对想知道为什么。 任何人都可以帮助我，或者有人有任何线索吗？

代码： 基本上我用：

$server = new SoapServer ( "somewsdl.wsdl" );
$server->setClass ( "soapserver_bla" );
$server->handle ();

在soapserver_bla类中有相应的方法：

public function testConnection()
{
    return 'success';
}

WSDL：

    <?xml version="1.0" encoding="UTF-8" ?> 
    <definitions name="TOPIX" targetNamespace="http://www.4d.com/namespace/default" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://www.4d.com/namespace/default" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<types>         
<schema targetNamespace="http://www.4d.com/namespace/default" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">          
<complexType name="ArrayOfstring" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<complexContent>
<restriction base="SOAP-ENC:Array">
<attribute ref="SOAP-ENC:arrayType" wsdl:arrayType="xsd:string[]"/>
</restriction>
</complexContent>           
</complexType>          
<complexType name="ArrayOffloat" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<complexContent>
<restriction base="SOAP-ENC:Array">
<attribute ref="SOAP-ENC:arrayType" wsdl:arrayType="xsd:float[]"/>
</restriction>
</complexContent>           
</complexType>          
<complexType name="ArrayOfint" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">

<complexContent>

<restriction base="SOAP-ENC:Array">

<attribute ref="SOAP-ENC:arrayType" wsdl:arrayType="xsd:int[]"/>

</restriction>

</complexContent>           
</complexType>          
<complexType name="ArrayOfboolean" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">

<complexContent>

<restriction base="SOAP-ENC:Array">

<attribute ref="SOAP-ENC:arrayType" wsdl:arrayType="xsd:boolean[]"/>

</restriction>

</complexContent>           
</complexType>          
<complexType name="ArrayOfdate" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">

<complexContent>

<restriction base="SOAP-ENC:Array">

<attribute ref="SOAP-ENC:arrayType" wsdl:arrayType="xsd:date[]"/>

</restriction>

</complexContent>           
</complexType>      
</schema>   
</types>    
<message name="testConnection_Request">     
</message>  
<message name="testConnection_Response">        
<part name="balbla" type="xsd:string"/>     
</message>  <portType name="SomePort">      
<operation name="testConnection">           
<input message="tns:testConnection_Request"/>           
<output message="tns:testConnection_Response"/>         
</operation>

</portType>

<binding name="SomeBinding" type="tns:SomeType">        
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="rpc" />       <operation name="testConnection">           
<documentation>no documentation is available</documentation>            <soap:operation soapAction="testConnection"/>           
<input>

<soap:body use="encoded" namespace="http://www.4d.com/namespace/default" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>            
</input>            
<output>

<soap:body use="encoded" namespace="http://www.4d.com/namespace/default" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>            </output>       
</operation>
            AND SO ON...