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#jssdk.php

<?php

class JSSDK {

  private $appId;

  private $appSecret;

  public function __construct($appId, $appSecret) {

    $this->appId = $appId;

    $this->appSecret = $appSecret;

  }

  public function getSignPackage() {

    $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]";

    $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 = 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(LOGS_PATH."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(LOGS_PATH."jsapi_ticket.json", "w");

        fwrite($fp, json_encode($data));

        fclose($fp);

      }

    } else {

      $ticket = $data->jsapi_ticket;

    }

    return $ticket;

  }

  private function getAccessToken() {

    // 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(LOGS_PATH."access_token.json"));

    if ($data->expire_time < time()) {

      // 如果是企业号用以下URL获取access_token

      // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";

      $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$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(LOGS_PATH."access_token.json", "w");

        fwrite($fp, json_encode($data));

        fclose($fp);

      }

    } 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, 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;

  }

}

include_once VIEWS.'inc/jssdk.php';

$jssdk = new JSSDK(WX_APPID, WX_APPKEY);

$signPackage = $jssdk->getSignPackage();

<script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>

<script>

$(function(){

    $(".share-btn").click(function() {

      $(".opa80,.prompt-direction").fadeIn();

    });

    $(".prompt-direction").click(function() {

        $(".opa80,.prompt-direction").hide();

    });

})

  wx.config({

    //debug:true,

    appId: '<?php echo $signPackage["appId"];?>',

    timestamp: '<?php echo $signPackage["timestamp"];?>',

    nonceStr: '<?php echo $signPackage["nonceStr"];?>',

    signature: '<?php echo $signPackage["signature"];?>',

    jsApiList: [

        'checkJsApi',

        'onMenuShareTimeline',

        'onMenuShareAppMessage',

        'onMenuShareQQ',

        'onMenuShareWeibo',

        'hideMenuItems',

        'showMenuItems',

        'hideAllNonBaseMenuItem',

        'showAllNonBaseMenuItem',

        'translateVoice',

        'startRecord',

        'stopRecord',

        'onRecordEnd',

        'playVoice',

        'pauseVoice',

        'stopVoice',

        'uploadVoice',

        'downloadVoice',

        'chooseImage',

        'previewImage',

        'uploadImage',

        'downloadImage',

        'getNetworkType',

        'openLocation',

        'getLocation',

        'hideOptionMenu',

        'showOptionMenu',

        'closeWindow',

        'scanQRCode',

        'chooseWXPay',

        'openProductSpecificView',

        'addCard',

        'chooseCard',

        'openCard'

    ]

  });

  wx.ready(function () {

  // 2. 分享接口

  // 2.1 监听“分享给朋友”，按钮点击、自定义分享内容及分享结果接口

   var dataForWeixin = {

        img: "http://shareimg",

        w:100,

        h:100,

        linkurl:"http://sharelink",

        title:"",

        desc:"分享文字内容",

   };

    // 2.2 监听“分享到朋友圈”按钮点击、自定义分享内容及分享结果接口

    wx.onMenuShareTimeline({

      title: dataForWeixin.desc,

      link: dataForWeixin.linkurl,

      imgUrl: dataForWeixin.img,

      desc: dataForWeixin.desc,

      trigger: function (res) {

       // alert('用户点击分享到朋友圈');

      },

      success: function (res) {

        popwx();  //发送朋友圈成功后触发ajax

        //alert('已分享');

      },

      cancel: function (res) {

        //alert('已取消');

      },

      fail: function (res) {

        //alert(JSON.stringify(res));

      }

    });

    // 分享给朋友

    wx.onMenuShareAppMessage({

      title: dataForWeixin.title,

      link: dataForWeixin.linkurl,

      imgUrl: dataForWeixin.img,

      desc: dataForWeixin.desc,

      trigger: function (res) {

       // alert('用户点击分享到朋友圈');

      },

      success: function (res) {

        popwx();  //发送朋友圈成功后触发ajax

        //alert('已分享');

      },

      cancel: function (res) {

        //alert('已取消');

      },

      fail: function (res) {

        //alert(JSON.stringify(res));

      }

    });

  });

</script>

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