<?php
namespace app\common\qccx\library;
class WxJsApi
{
//正式账号配置
private $appId = '填你的appId';
private $appSecret = '填你的appSecret';
public function __construct($appId, $appSecret)
{
$this->appId = $appId;
$this->appSecret = $appSecret;
}
//将方法变为私有
private function getSignPackage($url)
{
$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]$_SERVER[REQUEST_URI]";
//$url ="http://o2o.qchui.cn";
$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;
}
private function 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
$data = json_decode(file_get_contents("jsapi_ticket.json"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
// 如果是企业号用以下 URL 获取 ticket
// $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
$url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
$res = json_decode($this->httpGet($url));
$ticket = $res->ticket;
if ($ticket) {
$data->expire_time = time() + 7000;
$data->jsapi_ticket = $ticket;
$fp = fopen("jsapi_ticket.json", "w");
fwrite($fp, json_encode($data));
fclose($fp);
}
} else {
$ticket = $data->jsapi_ticket;
}
return $ticket;
}
private function getAccessToken()
{
$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
//查询缓存
$cache = new CacheFileService();
$access_token = $cache->get($this->appId);
if ($access_token) {
return $access_token;
} else {
$tk = $this->wx_api_request($url);
if (count($tk) > 0) {
//缓存1.9小时
$cache->set($this->appId, $tk['access_token'], 6840);
return $tk['access_token'];
}
}
return false;
}
private function wx_api_request($url)
{
$http_response = $this->httpGet($url);
$data = json_decode($http_response, true);
if (!empty($data['access_token'])) {
return $data;
}
return [];
}
// 获取用户信息
public function getUserInfo($openId)
{
$access_token = $this->getAccessToken();
$url = "https://api.weixin.qq.com/cgi-bin/user/info?access_token=$access_token&openid=$openId&lang=zh_CN";
return json_decode($this->httpGet($url), true);
}
private function httpGet($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 500);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_URL, $url);
$res = curl_exec($curl);
curl_close($curl);
return $res;
}
}
