微信jssdk获取签名(PHP)

1.获取access_token

//获取accesstoken
    public function getAccessToken()
    {
 
        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".'你的appid'."&secret=".'bc78e64a1e6c1b310cc525afe78a0853';
        // 微信返回的信息
        $returnData = json_decode($this->curlHttp($url));
        $resData['accessToken'] = $returnData->access_token;
        $resData['expiresIn'] = $returnData->expires_in;
        $resData['time'] = date("Y-m-d H:i",time());
 
        $res = $resData;
        return $res;
    }
 
    public function curlHttp($url) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true );
        curl_setopt($curl, CURLOPT_TIMEOUT, 500 );
        curl_setopt($curl, CURLOPT_URL, $url );
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER,false);
        $res = curl_exec($curl);
        curl_close($curl);
        return $res;
    }

2.获取api_ticket

public function getJsApiTicket($accessToken) {
 
        $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=$accessToken&&type=jsapi";
        // 微信返回的信息
        $returnData = json_decode($this->curlHttp($url));
 
        $resData['ticket'] = $returnData->ticket;
        $resData['expiresIn'] = $returnData ->expires_in;
        $resData['time'] = date("Y-m-d H:i",time());
        $resData['errcode'] = $returnData->errcode;
 
        return $resData;
    }

3.生成、获取签名

    // 获取签名
    public function getSignPackage() {
        // 获取token
        $token = $this->getAccessToken();
        // 获取ticket
        $ticketList = $this->getJsApiTicket($token['accessToken']);
        $ticket = $ticketList['ticket'];
        
        // 该url为调用jssdk接口的url
        $url = 'https://www.xxx.com/xxx.html';
        // 生成时间戳
        $timestamp = time();
        // 生成随机字符串
        $nonceStr = $this->createNoncestr();
        // 这里参数的顺序要按照 key 值 ASCII 码升序排序 j -> n -> t -> u
        $string = "jsapi_ticket=$ticket&noncestr=$nonceStr×tamp=$timestamp&url=$url";
        $signature = sha1($string);
        $signPackage = array (
            "appId" => 'wxda450acec7d47d60',
            "nonceStr" => $nonceStr,
            "timestamp" => $timestamp,
            "url" => $url,
            "signature" => $signature,
            "rawString" => $string,
            "ticket" => $ticket,
            "token" => $token['accessToken']
        );
 
        // 返回数据给前端
        echo json_encode($signPackage);
    }
 
    // 创建随机字符串
    public 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;
    }

 

转载于:https://www.cnblogs.com/tangqi9602/p/9754425.html