Pro PHP- Patterns, Frameworks, Testing and More

CHAPTER 19 ■ INTRODUCTION TO WEB SERVICES WITH SOAP^291

Request received with param1 = abcdefg

Place the service.php file at http://localhost/service.php, or adjust the WSDL file to

reflect your actual script location. The only place you define the service URL is in the WSDL file.

When you run the client, a SOAP envelope is created and sent (posted) to service.php,

which will then compute a response and return another SOAP envelope. To see what informa-

tion is being sent back and forth, use the trace option, as Listing 19-7 demonstrates.

Listing 19-7. Tracing SOAP Interaction

<?php

$client = new SoapClient('demo.wsdl', array('trace'=>true));

$response = $client->Demo('abcdefg');

print($client->__getLastRequest());

print($client->__getLastResponse());

echo $response;

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

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" ➥

xmlns:ns1="http://localhost/demo" 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/" SOAP-ENV:encodingStyle="http://schemas. ➥

xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns1:Demo><param1 xsi:type= ➥

"xsd:string">abcdefg</param1></ns1:Demo></SOAP-ENV:Body></SOAP-ENV:Envelope>

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

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" ➥

xmlns:ns1="http://localhost/demo" 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/" SOAP-ENV:encodingStyle="http://schemas. ➥

xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns1:DemoResponse><Result xsi:type= ➥

"xsd:string">Request received with param1 = abcdefg</Result></ns1:DemoResponse> ➥

</SOAP-ENV:Body></SOAP-ENV:Envelope>

Request received with param1 = abcdefg

SoapClient Class Methods and Options

The SoapClient’s constructor takes two parameters: a WSDL file and a list of options.

SoapClient::__construct(mixed $wsdl [, array $options])

Table 19-1 shows the SoapClient::__construct() options.

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