php怎么生成wsdl文件？

最近开始准备着手php webservice方面的编程，其中涉及到wsdl文件，这个怎么生成呢，办法有两种：
1.zend studio生成
对于zend studio 9之前的版本貌似直接生成：
File ->New -> Other-> Webservice-> WSDL



对于zend studio 9需要安装wsdl插件：
1、打开zendstudio9，选择help（帮助）->welcome2、在右边的列表中找到WSDL Support，勾选3、点击Apply changes（应用修改）4、zde会自动安装，然后提示要重启，点击restart now（现在重新启动）

wsdl支持安装完毕，下面我们来生成一个wsdl文件，步骤如下：1、选择保存wsdl的项目文件夹2、右键-new（新建）->other（其他）3、在弹出的对话框中选择web services，在下级菜单中选择WSDL file，点击next进入下一步4、命名你的wsdl文件，点击next进入下一步5、修改target namespace（目标名称空间），其他不变，点击finish。2.利用SoapDiscovery.class.php生成
这个文件源码：

<?php
class SoapDiscovery {
	private $class_name = '';
	private $service_name = '';
	
	/**
	 * SoapDiscovery::__construct() SoapDiscovery class Constructor.
	 * 
	 * @param string $class_name
	 * @param string $service_name
	 **/
	public function __construct($class_name = '', $service_name = '') {
		$this->class_name = $class_name;
		$this->service_name = $service_name;
	}
	
	/**
	 * SoapDiscovery::getWSDL() Returns the WSDL of a class if the class is instantiable.
	 * 
	 * @return string
	 **/
	public function getWSDL() {
		if (empty($this->service_name)) {
			throw new Exception('No service name.');
		}
		$headerWSDL = "<?xml version=\"1.0\" ?>\n";
		$headerWSDL.= "<definitions name=\"$this->service_name\" targetNamespace=\"urn:$this->service_name\" xmlns:wsdl=\"http://schemas.xmlsoap.org/wsdl/\" xmlns:soap=\"http://schemas.xmlsoap.org/wsdl/soap/\" xmlns:tns=\"urn:$this->service_name\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns=\"http://schemas.xmlsoap.org/wsdl/\">\n";
		$headerWSDL.= "<types xmlns=\"http://schemas.xmlsoap.org/wsdl/\" />\n";

		if (empty($this->class_name)) {
			throw new Exception('No class name.');
		}
		
		$class = new ReflectionClass($this->class_name);
		
		if (!$class->isInstantiable()) {
			throw new Exception('Class is not instantiable.');
		}
		
		$methods = $class->getMethods();
		
		$portTypeWSDL = '<portType name="'.$this->service_name.'Port">';
		$bindingWSDL = '<binding name="'.$this->service_name.'Binding" type="tns:'.$this->service_name."Port\">\n<soap:binding style=\"rpc\" transport=\"http://schemas.xmlsoap.org/soap/http\" />\n";
		$serviceWSDL = '<service name="'.$this->service_name."\">\n<documentation />\n<port name=\"".$this->service_name.'Port" binding="tns:'.$this->service_name."Binding\"><soap:address location=\"http://".$_SERVER['SERVER_NAME'].':'.$_SERVER['SERVER_PORT'].$_SERVER['PHP_SELF']."\" />\n</port>\n</service>\n";
		$messageWSDL = '';
		foreach ($methods as $method) {
			if ($method->isPublic() && !$method->isConstructor()) {
				$portTypeWSDL.= '<operation name="'.$method->getName()."\">\n".'<input message="tns:'.$method->getName()."Request\" />\n<output message=\"tns:".$method->getName()."Response\" />\n</operation>\n";
				$bindingWSDL.= '<operation name="'.$method->getName()."\">\n".'<soap:operation soapAction="urn:'.$this->service_name.'#'.$this->class_name.'#'.$method->getName()."\" />\n<input><soap:body use=\"encoded\" namespace=\"urn:$this->service_name\" encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" />\n</input>\n<output>\n<soap:body use=\"encoded\" namespace=\"urn:$this->service_name\" encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\" />\n</output>\n</operation>\n";
			    $messageWSDL.= '<message name="'.$method->getName()."Request\">\n";
				$parameters = $method->getParameters();
				foreach ($parameters as $parameter) {
					$messageWSDL.= '<part name="'.$parameter->getName()."\" type=\"xsd:string\" />\n";
				}
				$messageWSDL.= "</message>\n";
				$messageWSDL.= '<message name="'.$method->getName()."Response\">\n";
				$messageWSDL.= '<part name="'.$method->getName()."\" type=\"xsd:string\" />\n";
				$messageWSDL.= "</message>\n";
			}
		}
		$portTypeWSDL.= "</portType>\n";
		$bindingWSDL.= "</binding>\n";
		return sprintf('%s%s%s%s%s%s', $headerWSDL, $portTypeWSDL, $bindingWSDL, $serviceWSDL, $messageWSDL, '</definitions>');
	}
	
	/**
	 * SoapDiscovery::getDiscovery() Returns discovery of WSDL.
	 * 
	 * @return string
	 **/
	public function getDiscovery() {
		return "<?xml version=\"1.0\" ?>\n<disco:discovery xmlns:disco=\"http://schemas.xmlsoap.org/disco/\" xmlns:scl=\"http://schemas.xmlsoap.org/disco/scl/\">\n<scl:contractRef ref=\"http://".$_SERVER['SERVER_NAME'].':'.$_SERVER['SERVER_PORT'].$_SERVER['PHP_SELF']."?wsdl\" />\n</disco:discovery>";
	}
}

?>

使用案例：

<?php
	/**
	 * by www.phpddt.com
	 */
    include("Compute.php"); //你要生成的文件
    include("SoapDiscovery.class.php");
    
    $disco = new SoapDiscovery('Compute','Compute');//第一个参数是类名（生成的wsdl文件就是以它来命名的），即person类，第二个参数是服务的名字（这个可以随便写）。
    $wsdl = $disco->getWSDL();
    //$disco->getDiscovery();
    $fp = fopen("Compute.wsdl", "w");
    fwrite($fp, $wsdl);
?>