微信自定義分享支持https(php)

直接上代碼

目錄（jssdk在網站更目錄）

jssdk/jssdk.php
jssdk/share.js

jssdk.php 代碼以下

<?php

$url = $_GET['url'];//2017-06-27

class JSSDK {
  private $appId;
  private $appSecret;
  private $url;//2017-06-27

  public function __construct($appId, $appSecret,$url) {
    $this->appId = $appId;
    $this->appSecret = $appSecret;
    $this->url = $url;//2017-06-27
  }

  public function getSignPackage() {
    $jsapiTicket = $this->getJsApiTicket();

    // 注意 URL 必定要動態獲取，不能 hardcode.
    $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
    //$url = "$protocol$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";//2017-06-27
    $url =$this->url;//2017-06-27
    
    $timestamp = time();
    $nonceStr = $this->createNonceStr();

    // 這裏參數的順序要按照 key 值 ASCII 碼升序排序
    $string = "jsapi_ticket=$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 應該全局存儲與更新，如下代碼以寫入到文件中作示例
    $data = json_decode(file_get_contents("jsapi_ticket.json"));
    if ($data->expire_time < time()) {
      $accessToken = $this->getAccessToken();
      // 若是是企業號用如下 URL 獲取 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;
  }

  private function getAccessToken() {
    // access_token 應該全局存儲與更新，如下代碼以寫入到文件中作示例
    $data = json_decode(file_get_contents("access_token.json"));
    if ($data->expire_time < time()) {
      // 若是是企業號用如下URL獲取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;
        $fp = fopen("access_token.json", "w");
        fwrite($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, true);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true); //https
    curl_setopt($curl, CURLOPT_URL, $url);

    $res = curl_exec($curl);
    curl_close($curl);

    return $res;
  }
}
$jssdk = new JSSDK("AAPID", "appSecret",$url);
$signPackage = $jssdk->GetSignPackage();
$tmp=json_encode(array ('appId'=>$signPackage["appId"],'timestamp'=>$signPackage["timestamp"],'nonceStr'=>$signPackage["nonceStr"],'signature'=>$signPackage["signature"],'url'=>$signPackage["url"]));
$callback = $_GET['callback'];
echo $callback.'('.$tmp.')';
exit;
?>

share.js代碼以下

//url = location.href;
var url = encodeURIComponent(window.location.href);//去掉簽名
$.ajax({
    type: "get",
    url: "../jssdk/jssdk.php?url=" + url,
    dataType: "jsonp",
    jsonp: "callback",
    jsonpCallback: "success_jsonpCallback",
    success: function(data) {
        wx.config({
            appId: data.appId,
            timestamp: data.timestamp,
            nonceStr: data.nonceStr,
            signature: data.signature,
            jsApiList: ['chackJsApi', 'onMenuShareTimeline', 'onMenuShareAppMessage', 'onMenuShareQQ', 'onMenuShareWeibo', 'onMenuShareQZone']
        });
    },
    error: function(data) {
        alert("鏈接失敗！");
    }
});
wx.ready(function() {
    var shareData = {

        title: title,
        desc: desc,
        link: url,
        imgUrl: img,
        success: function(res) {
            //分享成功
        },
        cancel: function(res) {
            alert('已取消分享');
        }
    };
    wx.onMenuShareAppMessage(shareData);
    wx.onMenuShareTimeline(shareData);
    wx.onMenuShareQQ(shareData);
    wx.onMenuShareWeibo(shareData);
    wx.onMenuShareQZone(shareData);
});

部署方式 頁面底部添加以下代碼

在引用jweixin-1.0.0.js以前，重置define、require便可。
<script type="text/javascript">
    define = null;
    require = null;
</script>
<script src="https://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
<script src="https://www.10months.cn/jssdk/share.js"></script>
<script>
var url = 'https://www.10months.cn/s/2Z3q0pbDxOe-zOBb4vmtcq4';//用戶要分享的網址
var title  = '又更';//分享的標題
var img = 'https://www.10months.cn/theme/images/c2ee2b224db749098a33b8ced93515ea.gif';//分享的圖片
var desc = '又更僅僅如此';//分享的描述信息
</script>

ps：請在jquery以後引入