微信jssdk-微信分享

注意：<script type="text/javascript" src='http://res.wx.qq.com/open/js/jweixin-1.4.0.js'></script>

是不是 https 会报错！

第一步：把下面代码保存为jssdk.php 

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

      $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;
      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

      // 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;

       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, false);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($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);
  }
}

第二步： php 里面调用上面的类库获取权限

php

require_once "jssdk.php";
$appId = "wxae0f7ecf3be9d3c8";
$appSecret = "216eb425b8e07cf62a19993430f7928f";
$jssdk = new JSSDK($appId, $appSecret);
$signPackage = $jssdk->GetSignPackage();

$pic = "http://www.ganttcn.com/images/logo.png";
if($article['litpic']) $pic = 'http://www.ganttcn.com'.$article['litpic'];
$tit = $article['title'];
$url = 'http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"];

html

<script type="text/javascript" src='http://res.wx.qq.com/open/js/jweixin-1.4.0.js'></script>
<script type="text/javascript">

console.log(<?php echo json_encode($signPackage);?>);

  wx.config({
    debug: false,
    appId: "<?php echo $signPackage['appId']; ?>",
    timestamp: "<?php echo $signPackage['timestamp']; ?>",
    nonceStr: "<?php echo $signPackage['nonceStr']; ?>",
    signature: "<?php echo $signPackage['signature']; ?>",
    jsApiList: [
      // 所有要调用的 API 都要加到这个列表中
      'checkJsApi',
      'updateAppMessageShareData',
      'updateTimelineShareData',
      'onMenuShareTimeline',
      'onMenuShareAppMessage',
      'chooseImage',
      'uploadImage'
    ]
  });
 
//完成wx.config，执行这里
        wx.ready(function () {

                   wx.checkJsApi({
                       jsApiList: ['chooseImage','updateTimelineShareData','onMenuShareTimeline','onMenuShareAppMessage','updateAppMessageShareData'], // 需要检测的JS接口列表，所有JS接口列表见附录2,
                       success: function(res) {
                       // 以键值对的形式返回，可用的api值true，不可用为false
                       console.log(res);
                       // 如：{"checkResult":{"chooseImage":true},"errMsg":"checkJsApi:ok"}
                       }
                   });

                    //分享到朋友圈
                    wx.onMenuShareTimeline({
                        title: '{$tit}', // 分享标题
                        link:"{$url}",
                        imgUrl: "{$pic}", // 分享图标
                        success: function () {
                           
                        }
                    });

                    //分享给朋友
                    wx.onMenuShareAppMessage({
                        title: '{$tit}', // 分享标题
                        desc: '.',
                        link:"{$url}", // 分享网址
                        imgUrl: "{$pic}", // 分享图标
                        success: function (res) {
                            
                        }
                    });

        
        
                });
         
  
 
  </script>