TP5调用微信JSSDK 教程 —— 之异步使用

细节请参考前一篇文章：
JSSDK.PHP 修改下：

<?php
namespace jssdk;

class Jssdk {
  private $appId;
  private $appSecret;
  private $url;

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

  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$_SERVER[SERVER_NAME]$_SERVER[REQUEST_URI]";
    $url = $this->url;

    $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(EXTEND_PATH .'jssdk'. DS ."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(EXTEND_PATH .'jssdk'. DS ."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($curl, CURLOPT_TIMEOUT, 500);
    curl_setopt($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);
  }
}

controller:

        $config = config('wxConfig');
        $jssdk = new Jssdk($config['id'], $config['secret'],$sign_url);
        $signPackage = $jssdk->GetSignPackage();
        return json(['code'=>1,'msg'=>'success!','data'=>$signPackage],200);

前端：

    <script src="/h/js/jquery.min.js?v=2.1.4"></script>
    <script src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>
    <script src="/static/js/share_wx.js"></script>
    <script>
        $.fn.share_wx({
            desc: "xx",
            imgUrl: "xxurl"
        });
    </script>

share_wx:

/**
 * author:xuguo
 * weixin jssdk
 * xx.com
 */
(function($){
    var share_wx = {};
    /**
     *
     * @param obj  设置微信分享的信息
     * {
     *   title: "xx",
     *   desc: "xx",
     *   link: "xx",
     *   imgUrl: "xx"
     * }
     */
    share_wx.share_wx = function(obj) {
        var url = location.href.split('#')[0];
        $.ajax({
            url:'/index/index/share_wx',
            type:"get",
            data:{'sign_url':url},
            success:function (data) {
                if(data.code == 1){
                    wx_(data.data)
                }
            }
        });

        /**
         *
         * @param options
         * @private
         */
        function wx_(options) {
            wx.config({
                debug: false,
                appId: options.appId,
                timestamp: options.timestamp,
                nonceStr: options.nonceStr,
                signature: options.signature,
                jsApiList: [
                    "checkJsApi",
                    "onMenuShareTimeline",
                    "onMenuShareAppMessage",
                    "onMenuShareQQ",
                    "onMenuShareWeibo",
                    "onMenuShareQZone"
                ]
            });
            wx.ready(function() {
                var shareData = obj;
                wx.onMenuShareAppMessage(shareData);
                wx.onMenuShareTimeline(shareData);
                wx.onMenuShareQQ(shareData);
                wx.onMenuShareWeibo(shareData);
                wx.onMenuShareQZone(shareData);
            });
        }
    };
    $.fn.extend(share_wx);
})(jQuery);