Usage Examples of soap in PHP

This article describes the use of soap in PHP, and shares it with you for your reference. The specific usage analysis is as follows:

PHP uses soap in two ways.

1. Use the wsdl file

Server side:

<?php

class service

{

  public function HelloWorld()

   {

      return  "Hello";

   }

  public  function Add($a,$b)

   {

      return $a+$b;

   }

}

$server=new SoapServer('soap.wsdl',array('soap_version' => SOAP_1_2));

$server->setClass("service");

$server->handle();

?>

Resource description file, which can be generated by tool (zend studio). It's actually an xml file.

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

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

  <wsdl:types>

    <xsd:schema targetNamespace="http://localhost/interface/">

      <xsd:element name="HelloWorld">

        <xsd:complexType>

          <xsd:sequence>

            <xsd:element name="in" type="xsd:string"/>

          </xsd:sequence>

        </xsd:complexType>

      </xsd:element>

      <xsd:element name="HelloWorldResponse">

        <xsd:complexType>

          <xsd:sequence>

            <xsd:element name="out" type="xsd:string"/>

          </xsd:sequence>

        </xsd:complexType>

      </xsd:element>

      <xsd:element name="Add">

       <xsd:complexType>

        <xsd:sequence>

         <xsd:element name="in" type="xsd:int"></xsd:element>

        </xsd:sequence>

       </xsd:complexType>

      </xsd:element>

      <xsd:element name="AddResponse">

       <xsd:complexType>

        <xsd:sequence>
         <xsd:element name="out" type="xsd:int"></xsd:element>

        </xsd:sequence>

       </xsd:complexType>

      </xsd:element>

    </xsd:schema>

  </wsdl:types>

   <wsdl:message name="AddRequest">    <wsdl:part name="a" type="xsd:int"></wsdl:part>

   <wsdl:part name="b" type="xsd:int"></wsdl:part>

  </wsdl:message>

  <wsdl:message name="AddResponse">

   <wsdl:part name="c" type="xsd:int"></wsdl:part>

  </wsdl:message>

  <wsdl:portType name="TestSoap">     <wsdl:operation name="Add">

     <wsdl:input message="tns:AddRequest"></wsdl:input>

     <wsdl:output message="tns:AddResponse"></wsdl:output>

    </wsdl:operation>

  </wsdl:portType>

  <wsdl:binding name="soapSOAP" type="tns:TestSoap">

   <soap:binding style="document"

    transport="http://schemas.xmlsoap.org/soap/http" />

   <wsdl:operation name="Add">

    <soap:operation soapAction="http://localhost/interface/Add" />

    <wsdl:input>

     <soap:body use="literal"

      namespace="http://localhost/interface/" />

    </wsdl:input>

    <wsdl:output>

     <soap:body use="literal"

      namespace="http://localhost/interface/" />

    </wsdl:output>

   </wsdl:operation>

  </wsdl:binding>

  <wsdl:service name="TestSoap">

    <wsdl:port binding="tns:soapSOAP" name="soapSOAP">

      <soap:address location="http://localhost/interface/myservice.php"/>

    </wsdl:port>

  </wsdl:service>

</wsdl:definitions>

Client invocation:

<?php

$soap = new SoapClient('http://localhost/interface/soap.wsdl');

echo $soap->Add(1,2);

?>

2. Don't use wsdl files

Server side:

<?php

class service

{

  public function HelloWorld()

   {

      return  "Hello";

   }

  public  function Add($a,$b)

   {

      return $a+$b;

   }

}

$server=new SoapServer(null,array('uri' => "abcd"));

$server->setClass("service");

$server->handle();

?>

Client:

<?php

try{

 $soap = new SoapClient(null,array(

   "location" => "http://localhost/interface/soap.php",

   "uri"      => "abcd",  // Resource descriptor server and client must correspond 

   "style"    => SOAP_RPC,

   "use"      => SOAP_ENCODED

      ));
 echo $soap->Add(1,2);

}catch(Exction $e){

 echo print_r($e->getMessage(),true);

}

?>

I hope this article is helpful to everyone's PHP programming.