缘起

JS如何按字节来读取二进制数据？比如：对于二进制字符串str，如何逐个字节地转换成16进制标识的编码？

分析

JS中常用的字符串函数：

String.fromCharCode(code, code,…)

String.prototype.charCodeAt(int)

String.prototype.charAt(int)

通过查阅ecma文档: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf 可知：

String.fromCharCode(0x61) 得到的是一个ascii 字符 ‘a’ ,但是千万不要以为这是一个单字节的，不管参数char code有多大或者有多小，得到的都是一个双字节的char。如果参数>=2^16 ,则实际按照模2^16来处理。

下面给出一个将二进制信息转换成16进制编码的小函数：

function bin2hex(str) {
	var result = "";
	for (i = 0; i < str.length; i++ ) {
		var c = str.charCodeAt(i);
		result += byte2Hex(c>>8 & 0xff); // 高字节
		result += byte2Hex(c & 0xff);	// 低字节
	}
	return result;
}
function byte2Hex(b) {
	if(b < 0x10)
		return "0" + b.toString(16);
	else
		return b.toString(16);
}

function bin2hex(str) {

var result = "";

for (i = 0; i < str.length; i++ ) {

var c = str.charCodeAt(i);

result += byte2Hex(c>>8 & 0xff); // 高字节

result += byte2Hex(c & 0xff); // 低字节

}

return result;

}

function byte2Hex(b) {

if(b < 0x10)

return "0" + b.toString(16);

else

return b.toString(16);

}

function bin2hex(str) {
	var result = "";
	for (i = 0; i < str.length; i++ ) {
		result += int16_to_hex(str.charCodeAt(i));
	}
	return result;
}

function int16_to_hex(i) {
	var result = i.toString(16);
	var j = 0;
	while (j+result.length < 4){
		result = "0" + result;
		j++;
	}
    return result;
}

function bin2hex(str) {

var result = "";

for (i = 0; i < str.length; i++ ) {

result += int16_to_hex(str.charCodeAt(i));

}

return result;

}

function int16_to_hex(i) {

var result = i.toString(16);

var j = 0;

while (j+result.length < 4){

result = "0" + result;

j++;

}

return result;

}

问题：如果二进制数据是奇数个字节怎么办呢？

如果需要JS操作，则：

1. 将数据转换成ucs-2编码，然后做进一步的其它编码

2. JS从其它编码解得ucs-2编码后，在通过utf16to8(…)转换成utf8编码

结论

JS按字节操作二进制数据时，不要用字符串来做，要用字节数组来做（就是把字节code存放到数组里）。

一般来讲，JS能接收到的数据是非二进制的，或者说是对二进制数据做了16进制编码或base64编码（或其它编码），JS对编码的数据做解码时，解得的字节不要用String.fromCharCode(..)来处理直接存放为字符串，而是把解得的字节code放到一个数组里面，然后进行一系列的处理，最终处理后的数据可能还是二进制的，那么就把这些字节code从数组中直接做16进制或base64编码，然后输出。

关于网上的uf16to8(…)的函数： http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt

我觉得这只是一个概念上的逻辑，这样写并不能达到想要的效果。

首先，使用String.fromCharCode(…)来返回一个字节不对的，因为该函数返回的一定是2字节的，即使一个ascii字符；另：该函数认为charCodeAt(…)取到的是一个字节的code，也是错误的，因为该函数总是按2字节取的。

或者，可以这样理解，这几个函数都是操作字符串对象的，而在JS中，字符串总是按照UCS-2来存储的，这些函数的输入和输出也都是UCS-2编码的

关于escape的编码问题：

缘起

JS的escape到底是怎么实现的？如：

escape(String.fromCharCode(0x41))
"A"
escape(String.fromCharCode(129))
"%81"
escape(String.fromCharCode(257))
"%u0101"

escape(String.fromCharCode(0x41))

"A"

escape(String.fromCharCode(129))

"%81"

escape(String.fromCharCode(257))

"%u0101"

哪些字符不做编码？哪些字符做 ‘%’ 编码？哪些字符做 ‘%u’ 编码？

参考资料：

Ecma： http://www.ecma-international.org/publications/standards/Ecma-262.htm

1. Call ToString(string).
2. Compute the number of characters in Result(1).
3. Let R be the empty string.
4. Let k be 0.
5. If k equals Result(2), return R.
6. Get the character (represented as a 16-bit unsigned integer) at position k within Result(1).
7. If Result(6) is one of the 69 nonblank characters
“ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789@*_+-./”
then go to step 13.
8. If Result(6), is less than 256, go to step 11.
9. Let S be a String containing six characters “%uwxyz” where wxyz are four hexadecimal digits encoding the 
value of Result(6).
10. Go to step 14.
11. Let S be a String containing three characters “%xy” where xy are two hexadecimal digits encoding the value 
of Result(6).
12. Go to step 14.
13. Let S be a String containing the single character Result(6).
14. Let R be a new String value computed by concatenating the previous value of R and S.
15. Increase k by 1.
16. Go to step 5.

1. Call ToString(string).

2. Compute the number of characters in Result(1).

3. Let R be the empty string.

4. Let k be 0.

5. If k equals Result(2), return R.

6. Get the character (represented as a 16-bit unsigned integer) at position k within Result(1).

7. If Result(6) is one of the 69 nonblank characters

“ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789@*_+-./”

then go to step 13.

8. If Result(6), is less than 256, go to step 11.

9. Let S be a String containing six characters “%uwxyz” where wxyz are four hexadecimal digits encoding the

value of Result(6).

10. Go to step 14.

11. Let S be a String containing three characters “%xy” where xy are two hexadecimal digits encoding the value

of Result(6).

12. Go to step 14.

13. Let S be a String containing the single character Result(6).

14. Let R be a new String value computed by concatenating the previous value of R and S.

15. Increase k by 1.

16. Go to step 5.

Google V8项目主页： https://code.google.com/p/v8/

Google V8源码下载： https://code.google.com/p/v8/wiki/Source 参看：uri.h中 URIEscape::Escape 的实现

Google V8开发者参考： https://developers.google.com/v8/build

关于JS做压缩：

http://www.poluoluo.com/jzxy/201004/83108.html

lz77

JS二进制操作： http://blog.chinaunix.net/uid-52437-id-3325514.html

chrome extension 如何保存图片到本地

摘自： http://segmentfault.com/q/1010000000202581

// 将图片变成 DataURI
var img = new Image();
img.onload = function() {
  var canvas = document.createElement('canvas');
  canvas.width = img.width;
  canvas.height = img.height;
  var ctx = canvas.getContext('2d');
  ctx.drawImage(imageObj);

  // 这里就是你要的 DataURI
  var DataURI = canvas.toDataURL();
  // 保存下来
  chrome.storage.local.set({image : DataURI});
}
img.src = 'http://xxxx'; // 这里写你的图片 url

// 将图片变成 DataURI

var img = new Image();

img.onload = function() {

var canvas = document.createElement('canvas');

canvas.width = img.width;

canvas.height = img.height;

var ctx = canvas.getContext('2d');

ctx.drawImage(imageObj);

// 这里就是你要的 DataURI

var DataURI = canvas.toDataURL();

// 保存下来

chrome.storage.local.set({image : DataURI});

}

img.src = 'http://xxxx'; // 这里写你的图片 url

分享Chrome Extension（扩展程序/插件）开发的一些小经验

转自： http://www.cnblogs.com/dudu/archive/2012/11/22/chrome_extension.html

1、不通过Chrome Web Store直接安装Chrome插件（Extension）

我们之前开发网摘Chrome插件时，不需要通过Chrome Web Store，直接在网站上提供网摘插件的链接，用户点击就可以安装。后来，Chrome改为必须通过Web Store才能安装插件。

我们找到了一个Hack的方法，在Chrome Extensions窗口，直接将下载至本地的网摘插件文件拖动到Extensions窗口即可。

2、引用外部javascript文件的问题

如果在Extenstion中引用了外部的js文件，会引发这样的错误：

Refused to load the script 'https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js' because it violates the following Content Security Policy directive: "script-src 'self'".

1	Refused to load the script 'https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js' because it violates the following Content Security Policy directive: "script-src 'self'".

解决方法：在manifest.json中添加如下的代码（假设我们这里引用的是ajax.googleapis.com的js）：

"content_security_policy": "script-src 'self' https://ajax.googleapis.com; object-src 'self'",

1	"content_security_policy": "script-src 'self' https://ajax.googleapis.com; object-src 'self'",

3、不支持inline javascript代码的问题

从Chrome Extenstion V2开始，不允许执行任何inline javascript代码（也就是html内的任何js代码都不允许执行），比如下面的代码：

&lt;input type="submit" name="btn_submit" value="收藏" id="btn_submit" class="btn_submit" onclick="addwz()"/&gt;

1	<input type="submit" name="btn_submit" value="收藏" id="btn_submit" class="btn_submit" onclick="addwz()"/>

onclick中的addwz()函数不允许执行，点击时会报错：

Refused to execute inline event handler because it violates the following Content Security Policy directive: "script-src 'self' https://ajax.googleapis.com".

1	Refused to execute inline event handler because it violates the following Content Security Policy directive: "script-src 'self' https://ajax.googleapis.com".

解决方法：在内部引用的js文件中绑定事件，示例代码如下：

$('#btn_submit').click(function () {
    addwz();
});

$('#btn_submit').click(function () {

addwz();

});

大写锁定提示

http://blog.rexsong.com/?p=6085

http://dancewithnet.com/2007/04/16/detect-caps-lock/

css：CSS伪类与CSS伪元素的区别及由来

http://www.swordair.com/blog/2012/12/606/

关于论坛

今天了解了几个开源的论坛： phpBB、MyBB、smf，简单写一下心得

这三个论坛在sae上都有修改后的，可以直接安装

mybb不是完全面向对象的实现，代码结构不太好看；

smf的代码更是完全的面向过程的写法，尤其把函数都放到一个数组里面，通过数组的方式来使用，是非常的不编辑器友好的；

mybb和smf都是国外的开源软件，都在持续的维护着呢。

mybb和phpbb都可以安装插件之后通过tabatalk这个手机app来访问，参看： http://tapatalk.com 但是，目前只有iphone上有这个app，而且这个app还是收费的。

mybb可以通过插件： http://www.mybbgm.com/download.php 实现手机友好的访问

关于PHP的session的失效机制

参考资料： http://www.jb51.net/article/26890.htm 这里有些是对的，有些是错的，稍后整理一下

缘起：

1. 开发一个http的webservice，接口定义是比较费时的，使用现成的webservice还是比较不错的

2. 常用的webservice有Soap和RPC，Soap是业界的标准，而RPC则比较轻量级

3. 使用Soap时，如果手动来写wsdl文件是非常糟糕的事情，下面提供自动生成wsdl的方法

4. 使用Soap时，编辑器很难提示类有什么方法，如果给编辑器一个soap的插件帮助提示，便是极好的，有没有呢？

一些参考资料：

http://stackoverflow.com/questions/12490298/perfect-soap-wsdl-web-service-in-php

一个可以生成wsdl的PHP类，参考资料： http://www.cnblogs.com/phpdragon/archive/2012/06/10/2544171.html

<?php

/**
 * Copyright (c) 2005, Braulio Jos?Solano Rojas
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 * 
 *     Redistributions of source code must retain the above copyright notice, this list of
 *     conditions and the following disclaimer. 
 *     Redistributions in binary form must reproduce the above copyright notice, this list of
 *     conditions and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution. 
 *     Neither the name of the Solsoft de Costa Rica S.A. nor the names of its contributors may
 *     be used to endorse or promote products derived from this software without specific
 *     prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 *
 * @version $Id$
 * @copyright 2005 
 */

/**
 * SoapDiscovery Class that provides Web Service Definition Language (WSDL).
 * 
 * @package SoapDiscovery
 * @author Braulio Jos?Solano Rojas
 * @copyright Copyright (c) 2005 Braulio Jos?Solano Rojas
 * @version $Id$
 * @access public
 * */
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>');
        //生成wsdl文件，将上面的return注释
        $fso = fopen($this->class_name . ".wsdl", "w");
        fwrite($fso, 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>";
    }

}

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<?php

/**

* Redistribution and use in source and binary forms, with or without modification, are

* permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this list of

* conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice, this list of

* conditions and the following disclaimer in the documentation and/or other materials

* provided with the distribution.

* Neither the name of the Solsoft de Costa Rica S.A. nor the names of its contributors may

* be used to endorse or promote products derived from this software without specific

* prior written permission.

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND

* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,

* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

* @version $Id$

/**

* SoapDiscovery Class that provides Web Service Definition Language (WSDL).

* @package SoapDiscovery

* @author Braulio Jos?Solano Rojas

* @version $Id$

* @access public

* */

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>');

//生成wsdl文件，将上面的return注释

$fso = fopen($this->class_name . ".wsdl", "w");

fwrite($fso, 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>";

}

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