微信分享如何实现

badroot

2019-07-01

今天在做一个项目的时候用到微信的分享实现定义分享标题，图片，以及简介

下面来记录分享一下制作过程

<?php

  require_once "jssdk.php";

  $jssdk = new JSSDK("yourAppID", "yourAppSecret");    yourAppID//为你微信APPID   yourAppSecret//为yourAppID

  $signPackage = $jssdk->GetSignPackage();

?>

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <title></title>

</head>

<body>

   

</body>

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

<script>

  /*

   * 注意：

   * 1. 所有的JS接口只能在公众号绑定的域名下调用，公众号开发者需要先登录微信公众平台进入“公众号设置”的“功能设置”里填写“JS接口安全域名”。

   * 2. 如果发现在 Android 不能分享自定义内容，请到官网下载最新的包覆盖安装，Android 自定义分享接口需升级至 6.0.2.58 版本及以上。

   * 3. 常见问题及完整 JS-SDK 文档地址：http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html

   *

   * 开发中遇到问题详见文档“附录5-常见错误及解决办法”解决，如仍未能解决可通过以下渠道反馈：

   * 邮箱地址：[email protected]

   * 邮件主题：【微信JS-SDK反馈】具体问题

   * 邮件内容说明：用简明的语言描述问题所在，并交代清楚遇到该问题的场景，可附上截屏图片，微信团队会尽快处理你的反馈。

   */

      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: [     //把需要的接口加入至列表

              "onMenuShareTimeline", //分享给好友

              "onMenuShareAppMessage", //分享到朋友圈

              "onMenuShareQQ", //分享到QQ

              "onMenuShareWeibo", //分享到微博

              "checkJsApi","scanQRCode",   //如果需要调扫码  侧加入至列表

        ]

      });

     wx.ready(function (){

         var shareData = {

             title: '{$user_info.card.name}',  //标题

             desc: '{$user_info.card.company} 分享来自[智昕网络]',//简介，这里请特别注意是要去除html

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

             imgUrl: '{$user_info.avatar_img}'

         };

         wx.onMenuShareAppMessage(shareData);

         wx.onMenuShareTimeline(shareData);

         wx.onMenuShareQQ(shareData);

         wx.onMenuShareWeibo(shareData);

     });

</script>

</html>

下面是微信的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

    $data = json_decode($this->get_php_file("jsapi_ticket.php"));

    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;

        $this->set_php_file("jsapi_ticket.php", json_encode($data));

      }

    } 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

    $data = json_decode($this->get_php_file("access_token.php"));

    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;

        $this->set_php_file("access_token.php", json_encode($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, 500);

    // 为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，必须使用下面2行代码打开ssl安全校验。

    // 如果在部署过程中代码在此处验证失败，请到 http://curl.haxx.se/ca/cacert.pem 下载新的证书判别文件。

    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);

    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true);

    curl_setopt($curl, CURLOPT_URL, $url);

 

    $res = curl_exec($curl);

    curl_close($curl);

 

    return $res;

  }

 

  private function get_php_file($filename) {

    return trim(substr(file_get_contents($filename), 15));

  }

  private function set_php_file($filename, $content) {

    $fp = fopen($filename, "w");

    fwrite($fp, "<?php exit();?>" . $content);

    fclose($fp);

  }

}

现在完成了，关闭wx.config debug

改为 debug: false,