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：

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									<?php

									namespace 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;

									 }

									}