网站微信自定义分享代码,可以自定义分享图片标题描述（支持https）

在网站根目录下新建js目录，放入以下2个文件

js/jssdk.php
js/share.js

jssdk.php 代码如下

    <?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 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]";//2017-06-27        $url =$this->url;//2017-06-27               $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        $data = json_decode(file_get_contents("jsapi_ticket.json"));        if ($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;      }      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        $data = json_decode(file_get_contents("access_token.json"));        if ($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;            $fp = fopen("access_token.json", "w");            fwrite($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代码如下

url = location.href;$.ajax({    type: "get",    url: "../js/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("连接失败！");    }});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 页面底部添加如下代码

<script src="https://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script><script src="https://你的域名/js/share.js"></script><script>var url = '你的域名';//用户要分享的网址var title  = '您的标题';//分享的标题var img = '您的图片地址';//分享的图片var desc = '您的描述信息';//分享的描述信息</script>