WeChat packaged class library that calls WeChat signature package

This article mainly introduces the relevant information about the class library that calls the WeChat signature package packaged in WeChat. Friends who need it can refer to it

No more nonsense, I will directly post the code for everyone, the specific code As shown below:

<?php
namespace Home\Model;
use Think\Model;
class WechatModel extends Model {
private $_token = &#39;&#39;; //令牌
    private $appid;
    private $appsecret;
  public function __construct()
  {
    $this->appid = C(&#39;APPID&#39;);//公众号的appid
    $this->appsecret = C(&#39;APPSECRET&#39;);//公众号的秘钥
  }
  //调用js-sdk的签名包
  public function getSignPackage() {
  $jsapiTicket = $this->getJsApiTicket();
  // 注意 URL 一定要动态获取，不能 hardcode.（获取当前网页的url）
  $protocol = (!empty($_SERVER[&#39;HTTPS&#39;]) && $_SERVER[&#39;HTTPS&#39;] !== &#39;off&#39; || $_SERVER[&#39;SERVER_PORT&#39;] == 443) ? "https://" : "http://";
  $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
  //时间戳
  $timestamp = time();
  //随机字符串获取
  $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=$nonceStr&timestamp=$timestamp&url=$url";
  //生成字符串是用来签名用的
  $signature = sha1($string);
  $signPackage = array(
   "appId"   => $this->appid,
   "nonceStr" => $nonceStr,
   "timestamp" => $timestamp,
   "url"    => $url,
   "signature" => $signature,
   "rawString" => $string
  );
  return $signPackage; 
 }
 //使用会员卡领取的签名包
 public function getHuiYuanSignPackage() {
  $apiTicket = $this->getApiTicket();
  // 注意 URL 一定要动态获取，不能 hardcode.（获取当前网页的url）
  $protocol = (!empty($_SERVER[&#39;HTTPS&#39;]) && $_SERVER[&#39;HTTPS&#39;] !== &#39;off&#39; || $_SERVER[&#39;SERVER_PORT&#39;] == 443) ? "https://" : "http://";
  $url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
  //时间戳
  $timestamp = time();
  //随机字符串获取
  // $nonceStr = $this->createNonceStr();
  // 这里参数的顺序要按照 key 值 ASCII 码升序排序
  $string = $timestamp.$apiTicket."car_id";//card_id为自己创建的会员卡的id
  //生成字符串是用来签名用的
  $signature = sha1($string);
  $signPackage = array(
   "timestamp" => $timestamp,
   "signature" => $signature,
  );
  return $signPackage; 
 }
 //获取会员卡的api_ticket
 public function getApiTicket(){
 $data = json_decode(file_get_contents("api_ticket.json"));
  if ($data->expire_time < time()) {
   $accessToken = $this->getAccessToken();
   $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=wx_card&access_token=$accessToken";
   $res = json_decode($this->httpGet($url));
   $ticket = $res->ticket;
   if ($ticket) {
    $data->expire_time = time() + 7000;
    $data->jsapi_ticket = $ticket;
    $fp = fopen("api_ticket.json", "w");
    fwrite($fp, json_encode($data));
    fclose($fp);
   }
  } else {
   $ticket = $data->jsapi_ticket;
  }
  return $ticket;
 }
 //获取随机字符串
 private function createNonceStr($length = 16) {
  $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
  $str = "";
  for ($i = 0; $i < $length; $i++) {
   $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
  }
  return $str;
 }
  //获取Access Token
  public function getAccessToken(){
  //将json字符串转换为json对象（json_encode是将数组转换为json字符串，json_decode("",true) 如果加true是将json字符串转化为php数组，不加true转换为PHP对象）
  $data = json_decode(file_get_contents("access_token.json"));
  if ($data->expire_time < time()) {
   // 如果是企业号用以下URL获取access_token
   $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$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;
    $fp = fopen("access_token.json", "w");
    fwrite($fp, json_encode($data));
    fclose($fp);
 }
  } else {
   $access_token = $data->access_token;
  }
  return $access_token;
  }
 //获取jsapi_ticket(jsapi_ticket是公众号用于调用微信JS接口的临时票据)
  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;
 }
  //获取用户的openid
  public function openId(){
  $url = $_SERVER[&#39;HTTP_HOST&#39;] . $_SERVER[&#39;REQUEST_URI&#39;]; 
    if (!isset($_GET[&#39;code&#39;])) {
     //获取组装的url
      $openidUrl = $this->snsapi_base($url);
      redirect($openidUrl);
    }else{
      $openidAccess_token = $this->openidAccess_token($_GET[&#39;code&#39;]);
      return $openidAccess_token;
    }
  }
   //获取微信用户的opnid
  public function getOpenId($openid,$access_token)
  {
    $userInfo = $this->getUserInfo($openid,$access_token);
    return $userInfo;
  }
   public function snsapi_base($redirect_uri, $scope = "snsapi_userinfo", $state = 0)
  {
    $appId = $this->appid;
    $url = "https://open.weixin.qq.com/connect/oauth2/authorize";
    $url .= "?appid=$appId";
    $url .= "&redirect_uri=http://$redirect_uri";
    $url .= "&response_type=code";
    $url .= "&scope=$scope";
    $url .= "&state=$state#wechat_redirect";
    return $url;
  }
public function openidAccess_token($code){
    $appId = $this->appid;
    $appSecret= $this->appsecret;
    $url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=$appId&secret=$appSecret&code=$code&grant_type=authorization_code";
    return json_decode($this->httpGet($url),true);
  }
  //获取用户信息
  public function getUserInfo($openid, $access_token){
  $url = "https://api.weixin.qq.com/sns/userinfo?access_token=$access_token&openid=$openid&lang=zh_CN ";
    return json_decode($this->httpGet($url),true);
   //请求
  }
private function httpGet($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;
 }
}

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