微信封装的调用微信签名包的类库

废话不多说了，直接给大家贴代码了，具体代码如下所示：

<?phpnamespace Home/Model;use Think/Model;class WechatModel extends Model {private $_token = ''; //令牌    private $appid;    private $appsecret;  public function __construct()  {    $this->appid = C('APPID');//公众号的appid    $this->appsecret = C('APPSECRET');//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['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 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['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 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['HTTP_HOST'] . $_SERVER['REQUEST_URI'];     if (!isset($_GET['code'])) {     //获取组装的url      $openidUrl = $this->snsapi_base($url);      redirect($openidUrl);    }else{      $openidAccess_token = $this->openidAccess_token($_GET['code']);      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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