关于微信分享到朋友圈(Thinkphp框架下实现)

PHP部分

扩展类代码部分:

<?php
namespace Think;

class JsSdk {
      private $appId;
      private $appSecret;
      public $debug = false;

  public function __construct($appId, $appSecret) {
        $this->appId = $appId;
        $this->appSecret = $appSecret;
  }

  public function getSignPackage() {
        $jsapiTicket = $this->getJsApiTicket();
        $url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
        $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=$nonceStr&timestamp=$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 = ) {
        $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        $str = "";
        for ($i = ; $i < $length; $i++) {
          $str .= substr($chars, mt_rand(, strlen($chars) - ), );
        }
        return $str;
  }

  private function getJsApiTicket() {
      //debug模式
      if ($this->debug) {
        // 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"));
      } else {
          //从cache中读取，基于ThinkPHP的缓存机制
          $data = (object)(S('jsapi_ticket_json'));
      }

    if ($data->expire_time < time()) {
          $accessToken = $this->getAccessToken();
          $url = "http://api.weixin.qq.com/cgi-bin/ticket/getticket?type=1&access_token=$accessToken";
          $res = json_decode($this->httpGet($url));
          $ticket = $res->ticket;

          if ($ticket) {
            $data->expire_time = time() + ;
            $data->jsapi_ticket = $ticket;

            //debug模式
            if ($this->debug) {
                $fp = fopen("jsapi_ticket.json", "w");
                fwrite($fp, json_encode($data));
                fclose($fp);
            } else {
                //将对象以数组的形式进行缓存
                S('jsapi_ticket_json', (array)$data);
            }

          }
        } else {
          $ticket = $data->jsapi_ticket;
        }

    return $ticket;
  }

  private function getAccessToken() {

      //debug模式
      if ($this->debug) {
        // access_token 应该全局存储与更新，以下代码以写入到文件中做示例
          $data = json_decode(file_get_contents("access_token.json"));
          dump($data);
          die();
      } else {
          //从缓存中读取数组并转成对象
        $data = (Object)(S('access_token.json'));
      }

        if ($data->expire_time < time()) {
          $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential
          &appid=$this->appId&secret=$this->appSecret";
          $res = json_decode($this->httpGet($url));
          $access_token = $res->access_token;

          if ($access_token) {
            $data->expire_time = time() + ;
            $data->access_token = $access_token;

            //debug模式
            if ($this->debug) {
                $fp = fopen("access_token.json", "w");
                fwrite($fp, json_encode($data));
                fclose($fp);
            } else {
                //缓存数组
                S('access_token.json', (array)$data);
            }

          }
        } else {
          $access_token = $data->access_token;
        }
        return $access_token;
  }

  private function httpGet($url) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, );
        curl_setopt($curl, CURLOPT_URL, $url);
        $res = curl_exec($curl);
        //错误检测
        $error = curl_error($curl);
        curl_close($curl);

        //发生错误，抛出异常
        if($error) throw new \Exception('请求发生错误(表检查是否在授权域名下访问)：' . $error);

        return $res;
      }
}

控制器部分代码：

public function reurnWeixinCode() {
        $jssdk = new \Think\Jssdk(WX_GONGZHONGHAO_APPID, WX_GONGZHONGHAO_APPSECRET);
        $signPackage = $jssdk->GetSignPackage();
        return $signPackage;
    }

Html部分

 <script type="text/javascript">
        var imgUrl = "{$img_url}";
        var link = "{$huodong_url}";
        var descContent = '{$desc}';

        var shareTitle = '{$title}';
        var appid = '';
 </script>
 <script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js";></script>
 <script type="text/javascript">
wx.config({
   // debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，
   可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
    appId: '{$signPackage['appId']}', // 必填，公众号的唯一标识
    timestamp: {$signPackage['timestamp']}, // 必填，生成签名的时间戳
    nonceStr: '{$signPackage['nonceStr']}', // 必填，生成签名的随机串
    signature: '{$signPackage['signature']}',// 必填，签名，见附录1
    jsApiList: [
                'onMenuShareTimeline',
                'onMenuShareAppMessage',
                'onMenuShareQQ',
                'onMenuShareWeibo'
                ] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
 });
wx.ready(function(){

    //朋友圈
    wx.onMenuShareTimeline({
        title: shareTitle,
        link: link,
        imgUrl: imgUrl,
        trigger: function (res) {
           // alert('用户点击并朋友圈');
         },
        success: function () {
            // 用户确认分享后执行的回调函数
            //alert('Timeline分享成功');
        },
        cancel: function () {
            // 用户取消分享后执行的回调函数
          //  alert('您取消了分享Timeline');
        }
    });
    wx.onMenuShareAppMessage({
        title: shareTitle,
        link: link,
        desc: descContent,
        imgUrl: imgUrl,
        type: '', // 分享类型,music、video或link，不填默认为link
        dataUrl: '', // 如果type是music或video，则要提供数据链接，默认为空
        success: function () {
         //   alert('分享给朋友分享成功');
        },
        cancel: function () {
         //   alert('您取消了分享给朋友');
        }
    });
    wx.onMenuShareQQ({
        title: shareTitle,
        desc: descContent,
        link: link,
        imgUrl: imgUrl,

        success: function () {
          //  alert('qq分享成功');
        },
        cancel: function () {
          //  alert('您取消了分享给qq');
        }
    });
    wx.onMenuShareWeibo({
        title: shareTitle,
        desc: descContent,
        link: link,
        imgUrl: imgUrl,
        success: function () {
              // alert('weibo分享成功');
        },
        cancel: function () {
             // alert('weibo取消');
        }
    });
    // config信息验证后会执行ready方法，所有接口调用都必须在config接口获得结果之后，
    config是一个客户端的异步操作，所以如果需要在页面加载时就调用相关接口，
    则须把相关接口放在ready函数中调用来确保正确执行。对于用户触发时才调用的接口，
    则可以直接调用，不需要放在ready函数中。
 });
wx.error(function (res) {
     // alert(res.errMsg);
 });
 </script>