微信 H5 页面分享

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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;
  }
}

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include_once VIEWS.'inc/jssdk.php';
$jssdk = new JSSDK(WX_APPID, WX_APPKEY);
$signPackage = $jssdk->getSignPackage();

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<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>