th6微信公众号后端拿tokeng和签名

前端直接读取接口getApiTicketAction并传入url。

vue里url获取

   var urls = window.location.href.split('#')[0]; //当前网页的URL，不包含#及其后面部分

php端

          //拿tokeng
public function gettonken()
{
$site = xn_cfg('base');$appid = $site['wxchat_appid'];$appsecret = $site['wxchat_secret'];$token = Db::name('wxtoken')->where('id',2)->find();
$minute=floor((time()-$token['create_time'])%86400/60);
$access_token=$token['token'];
if (minute>100){         url = "api.weixin.qq.com/cgi-bin/tok…" . appid . "&secret=" . appsecret;
$weixin = file_get_contents($url);
$jsondecode = json_decode($weixin); //对JSON格式的字符串进行编码
$array = get_object_vars($jsondecode);//转换成数组
$access_token =$array['access_token'];//输出token
$expires_in=$array['expires_in'];//输出token
Db::name('wxtoken')->where('id',2)->update(['token'=>access_token,'create_time'=>time()]);         }          return access_token;
}

           //拿Ticket
public function getJsApiTicket()
{
$site = xn_cfg('base');$appid = $site['wxchat_appid'];$appsecret = $site['wxchat_secret'];$token = Db::name('wxtoken')->where('id',3)->find();
$minute=floor((time()-$token['create_time'])%86400/60);
$access_token=$token['token'];
if (minute>100){         url = "api.weixin.qq.com/cgi-bin/tic…;
$weixin = file_get_contents($url);
$jsondecode = json_decode($weixin); //对JSON格式的字符串进行编码
$array = get_object_vars($jsondecode);//转换成数组
$access_token =$array['ticket'];//输出token
$expires_in=$array['expires_in'];//输出token
Db::name('wxtoken')->where('id',3)->update(['token'=>access_token,'create_time'=>time()]);         }         return access_token;
}


public function getApiTicketAction(Request request)     {         site = xn_cfg('base');

$param =$request->param();
$url =$param['url'];
$appid =$site['wxchat_appid'];
$jsapiTicket =$this->getJsApiTicket();
$timestamp = time();$nonceStr = $this->createNonceStr(); //构造一个随机数，用来生成签名的一部分

        $string = "jsapi_ticket=$jsapiTicket&noncestr=nonceStr&timestamp=timestamp&url=$url"; //签名算法先按照ascII码排序$signature = sha1($string);  //对排序好的字符串加密$signPackage = array(
"appId"     => $appid,             "nonceStr"  =>$nonceStr,
"timestamp" => $timestamp,             "signature" =>$signature,
);
return success($signPackage);

}

    private function createNonceStr(length = 16) { //生成随机16个字符的字符串         chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";         for ($i = 0; $i <$length; i++) {             str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}