PHP로 웹 서비스를 개발하기 위한 샘플 코드에 대한 자세한 소개

1. apt-get install php5
2. apt-get install php5-dev
3. apt-get libapache2-mod-php5
3. apt-get install lib
xml
2
4. apt-get install libxml2-dev
5. 下载 WSF/PHP v2.0.0 并解压到一个目录
6. 在命令行访问该目录，以“root”执行下列命令：
./configure
make
make install
7.  /etc/init.d/apache2 restart

<?php
function calculate($inMessage){
$simplexml = new SimpleXMLElement($inMessage->str);
$operand1  = $simplexml->param1[0];
$operand2  = $simplexml->param2[0];
$operation = $simplexml->param3[0];
if($operation != null)
{
    switch($operation)
    {
         case "add" : $result= $operand1 + $operand2; break;
         case "sub" : $result= $operand1 - $operand2; break;
         case "mul" : $result= $operand1 * $operand2; break;
         case "p" : $result= $operand1 / $operand2; break;
    }
}
$response = <<<XML
        <result>$result</result>
XML;
$returnMsg = new WSMessage($response);
return $returnMsg;
}
$service = new WSService(array("operations" => array("calculate")));
$service->reply();
?>

<?php
$requestPayload = <<<XML
<calculate>
<param1>100</param1>
<param2>43</param2>
<param3>add</param3>
</calculate>
XML;
try{
$message = new WSMessage($requestPayload,
            array("to" => "http://localhost:81/CalculatorService.php"));
$client = new WSClient();
$response = $client->request($message);    
echo "Answer : $response->str";
}
catch (Exception $e){   
if ($e instanceof WSFault){
  $fault = $e;
  printf("Soap Fault received. Code: &#39;%s&#39; .Reason: &#39;%s&#39;/n",
                  $fault->code, $fault->reason);
}else{
  printf("Exception occurred. Message: &#39;%s&#39;/n", $e->getMessage());
}
}
?>