昨天微信提供了新版本的jssdk,这里修改了一下，支持了3.2版本的命令空间，同时添加了调试模式！<?php <br />
/**<br>
* 官方文档：http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html<br>
* 官方示例：http://demo.open.weixin.qq.com/jssdk/sample.zip<br>
* <br>
* 微信JSSDK类,主要修改了保存会话信息机制，示例中使用的是文件，这里使用了ThinkPHP的缓存机制，参考官方提供的示例文档 <br>
* 新增了调试模式,调用示例如下：<br>
* $jssdk = new JSSDK(C('WX_APPID'), C('WX_SECRET'));<br>
* $jssdk->debug = true; //启用本地调试模式,将官方的两个json文件放到入口文件index.php同级目录即可!<br>
* $signPackage = $jssdk->GetSignPackage();<br>
* @命名空间版本<br>
* @author 阿甘 (QQ:33808 624)<br>
* @date 2015-1-10 14:10<br>
*/<br>
namespace Com;<br>
<br>
class JsSdk {<br>
private $appId;<br>
private $appSecret;<br>
public $debug = false;<br>
<br>
public function __construct($appId, $appSecret) {<br>
$this->appId = $appId;<br>
$this->appSecret = $appSecret;<br>
}<br>
<br>
public function getSignPackage() {<br>
$jsapiTicket = $this->getJsApiTicket();<br>
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";<br>
$timestamp = time();<br>
$nonceStr = $this->createNonceStr();<br>
<br>
// 这里参数的顺序要按照 key 值 ASCII 码升序排序<br>
$string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url";<br>
<br>
$signature = sha1($string);<br>
<br>
$signPackage = array(<br>
"appId" => $this->appId,<br>
"nonceStr" => $nonceStr,<br>
"timestamp" => $timestamp,<br>
"url" => $url,<br>
"signature" => $signature,<br>
"rawString" => $string<br>
);<br>
return $signPackage; <br>
}<br>
<br>
private function createNonceStr($length = 16) {<br>
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";<br>
$str = "";<br>
for ($i = 0; $i
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);<br>
}<br>
return $str;<br>
}<br>
<br>
private function getJsApiTicket() {<br>
//debug模式<br>
if ($this->debug) {<br>
// jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例<br>
$data = json_decode(file_get_contents("jsapi_ticket.json"));<br>
} else {<br>
//从cache中读取，基于ThinkPHP的缓存机制<br>
$data = (object)(S('jsapi_ticket_json'));<br>
}<br>
<br>
if ($data->expire_time
$accessToken = $this->getAccessToken();<br>
$url = "http://api.weixin.qq.com/cgi-bin/ticket/getticket?type=1&access_token=$accessToken";<br>
$res = json_decode($this->httpGet($url));<br>
$ticket = $res->ticket;<br>
<br>
if ($ticket) {<br>
$data->expire_time = time() + 7200;<br>
$data->jsapi_ticket = $ticket;<br>
<br>
//debug模式<br>
if ($this->debug) {<br>
$fp = fopen("jsapi_ticket.json", "w");<br>
fwrite($fp, json_encode($data));<br>
fclose($fp);<br>
} else {<br>
//将对象以数组的形式进行缓存<br>
S('jsapi_ticket_json', (array)$data);<br>
}<br>
<br>
}<br>
} else {<br>
$ticket = $data->jsapi_ticket;<br>
}<br>
<br>
return $ticket;<br>
}<br>
<br>
private function getAccessToken() {<br>
<br>
//debug模式<br>
if ($this->debug) {<br>
// access_token 应该全局存储与更新，以下代码以写入到文件中做示例<br>
$data = json_decode(file_get_contents("access_token.json"));<br>
dump($data);<br>
die();<br>
} else {<br>
//从缓存中读取数组并转成对象<br>
$data = (Object)(S('access_token.json'));<br>
}<br>
<br>
if ($data->expire_time
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";<br>
$res = json_decode($this->httpGet($url));<br>
$access_token = $res->access_token;<br>
<br>
if ($access_token) {<br>
$data->expire_time = time() + 7000;<br>
$data->access_token = $access_token;<br>
<br>
//debug模式<br>
if ($this->debug) {<br>
$fp = fopen("access_token.json", "w");<br>
fwrite($fp, json_encode($data));<br>
fclose($fp);<br>
} else {<br>
//缓存数组<br>
S('access_token.json', (array)$data); <br>
}<br>
<br>
}<br>
} else {<br>
$access_token = $data->access_token;<br>
}<br>
return $access_token;<br>
}<br>
<br>
private function httpGet($url) {<br>
<br>
$curl = curl_init();<br>
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);<br>
curl_setopt($curl, CURLOPT_TIMEOUT, 500);<br>
curl_setopt($curl, CURLOPT_URL, $url);<br>
<br>
$res = curl_exec($curl);<br>
<br>
//错误检测<br>
$error = curl_error($curl);<br>
<br>
curl_close($curl);<br>
<br>
//发生错误，抛出异常<br>
if($error) throw new \Exception('请求发生错误(表检查是否在授权域名下访问)：' . $error);<br>
<br>
return $res;<br>
}<br>
<br>
<br>
}
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