[PHP/XML] Webservices SOAP, struttura file wsdl

[race2]

Salve,
stò affrontando per la prima volta i web services SOAP in PHP, stò cercando di capire le basi e la struttura del file ".wsdl", ho trovato cosi tanti esempi e testi che non so a quale affidarmi, per ogni esempio la struttura cambia, i tag cambiano, insomma è tutto diverso...

Vi chiedo una mano per scegliere una guida dove imparare correttamente come realizzare un web services in PHP e SOAP, escludendo "nusoap e soap rest".

Se ci sono più modi di procedere vorrei imparare quello migliore a livello di sicurezza.

Grazie molte.

[race2]

Cosa c'è di sbagliato in questo wsdl ?? Funziona ma non credo assolutamente che sia scritto come si deve.

<?xml version="1.0" encoding="UTF-8"?>

<wsdl:definitions 
	name="Library"
	xmlns:xsd="http://www.w3.org/2001/XMLSchema"
	targetNamespace="Library"
	xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
	xmlns:tns="Library"
	xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">

    <xsd:documentation></xsd:documentation>

    <wsdl:types>
        <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="Library">
            <xsd:complexType name="my_value">
                <xsd:sequence>
                    <xsd:element name="my_var" type="xsd:string"></xsd:element>
                </xsd:sequence>
            </xsd:complexType>
        </xsd:schema>
    </wsdl:types>

    <wsdl:message name="MyFunctionRequest">
        <wsdl:part name="_request_" type="xsd:book"></wsdl:part>
    </wsdl:message>
    <wsdl:message name="MyFunctionResponse">
        <wsdl:part name="_response_" type="tns:string"></wsdl:part>
    </wsdl:message>

    <wsdl:portType name="Library">
        <wsdl:operation name="MyFunction_1">
            <wsdl:input message="tns:MyFunctionRequest"/>
            <wsdl:output message="tns:MyFunctionResponse"/>
        </wsdl:operation>
		<wsdl:operation name="MyFunction_2">
            <wsdl:input message="tns:MyFunctionRequest"/>
            <wsdl:output message="tns:MyFunctionResponse"/>
        </wsdl:operation>
    </wsdl:portType>

    <wsdl:binding name="Library" type="tns:Library">
        <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
        <wsdl:operation name="MyFunction_1">
            <soap:operation soapAction="http://127.0.0.1/ws_soap/server.php"/>
            <wsdl:input>
                <soap:body use="literal" namespace="Library"/>
            </wsdl:input>
            <wsdl:output>
                <soap:body use="literal" namespace="Library"/>
            </wsdl:output>
        </wsdl:operation>
		<wsdl:operation name="MyFunction_2">
            <soap:operation soapAction="http://127.0.0.1/ws_soap/server.php"/>
            <wsdl:input>
                <soap:body use="literal" namespace="Library"/>
            </wsdl:input>
            <wsdl:output>
                <soap:body use="literal" namespace="Library"/>
            </wsdl:output>
        </wsdl:operation>
    </wsdl:binding>

    <wsdl:service name="Library">
        <wsdl:port binding="tns:Library" name="BookLibrary">
            <soap:address location="http://127.0.0.1/ws_soap/server.php"/>
        </wsdl:port>
    </wsdl:service>

</wsdl:definitions>

Questo è il server:

ini_set('soap.wsdl_cache_enabled', 0);

class MyClass
{
	public function MyFunction_1($my_value_1)
	{
		return $my_value_1;
	}
	
	public function MyFunction_2($my_value_2)
	{
		return $my_value_2;
	}
}

$Service = new MyClass();

$server = new SoapServer("ws.wsdl");
$server->setObject($Service);
$server->handle();

Questo è il client:

ini_set('soap.wsdl_cache_enabled', 0);
ini_set('soap.wsdl_cache_ttl', 0);

$wsdl = 'http://127.0.0.1/ws_soap/server.php/method?WSDL';

$options = array(
				'uri'=>'http://schemas.xmlsoap.org/soap/envelope/',
				'style'=>SOAP_RPC,
				'use'=>SOAP_ENCODED,
				'soap_version'=>SOAP_1_1,
				'cache_wsdl'=>WSDL_CACHE_NONE,
				'connection_timeout'=>15,
				'trace'=>true,
				'encoding'=>'UTF-8',
				'exceptions'=>true,
				);

$objClient = new SoapClient($wsdl, $options);

try
{
	if(isset($objClient))
	{
		$resp1 = $objClient->MyFunction_1("Ciao ");
		$resp2 = $objClient->MyFunction_2(" sono Mario");
		
		echo $resp1.$resp2;
	}
}
catch(SoapFault $ex)
{
	echo var_dump($ex);
}