$this->appId =$appId;
$this->appSecret =$appSecret;
}publicfunction getSignPackage() {
$jsapiTicket= $this->getJsApiTicket();//注意 URL 一定要动态获取，不能 hardcode.
$protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
$url= "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$timestamp=time();
$nonceStr= $this->createNonceStr();//这里参数的顺序要按照 key 值 ASCII 码升序排序
$string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr×tamp=$timestamp&url=$url";
$signature= sha1($string);
$signPackage=array("appId" => $this->appId,"nonceStr" =>$nonceStr,"timestamp" =>$timestamp,"url" =>$url,"signature" =>$signature,"rawString" => $string);return$signPackage;
}private function createNonceStr($length = 16) {
$chars= "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str= "";for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}return$str;
}privatefunction getJsApiTicket() {//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
$data = json_decode($this->get_php_file("jsapi_ticket.php"));if ($data->expire_time
$accessToken= $this->getAccessToken();//如果是企业号用以下 URL 获取 ticket//$url = "https://qyapi./cgi-bin/get_jsapi_ticket?access_token=$accessToken";
$url = "https://api./cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
$res= json_decode($this->httpGet($url));
$ticket= $res->ticket;if($ticket) {
$data->expire_time = time() + 7000;
$data->jsapi_ticket =$ticket;
$this->set_php_file("jsapi_ticket.php", json_encode($data));
}
}else{
$ticket= $data->jsapi_ticket;
}return$ticket;
}privatefunction getAccessToken() {//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
$data = json_decode($this->get_php_file("access_token.php"));if ($data->expire_time appId&corpsecret=$this->appSecret";
$url = "https://api./cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
$res= json_decode($this->httpGet($url));
$access_token= $res->access_token;if($access_token) {
$data->expire_time = time() + 7000;
$data->access_token =$access_token;
$this->set_php_file("access_token.php", json_encode($data));
}
}else{
$access_token= $data->access_token;
}return$access_token;
}privatefunction httpGet($url) {
$curl=curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER,true);
curl_setopt($curl, CURLOPT_TIMEOUT,500);//为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。//如果在部署过程中代码在此处验证失败，请到http://curl.haxx.se/ca/cacert.pem下载新的证书判别文件。
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST,true);
curl_setopt($curl, CURLOPT_URL, $url);
$res=curl_exec($curl);
curl_close($curl);return$res;
}privatefunction get_php_file($filename) {return trim(substr(file_get_contents($filename), 15));
}privatefunction set_php_file($filename, $content) {
$fp= fopen($filename, "w");
fwrite($fp,"<?php exit();?>". $content);
fclose($fp);
}
}
