php 微信分享自定义标题 图片 描述接口开发

<!---weixin fenxiang api start-->

<?php

class JSSDK {

  private $appId;

  private $appSecret;

  public function __construct($appId, $appSecret) {

    $this->appId = $appId;

    $this->appSecret = $appSecret;

  }

  public function getSignPackage() {

    $jsapiTicket = $this->getJsApiTicket();

    

    $url = "http://".$_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=$nonceStr×tamp=$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();

      $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$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()) {

      $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$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, false);

    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);

    curl_setopt($curl, CURLOPT_URL, $url);

    $res = curl_exec($curl);

    curl_close($curl);

    return $res;

  }

}

$jssdk = new JSSDK("xxxxxxxx", "xxxxxx");//你的appid,appsecret

$signPackage = $jssdk->GetSignPackage();

?>

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

<script>

wx.config({

    debug: false,//关闭调试模式

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

    timestamp: <?php echo $signPackage["timestamp"];?>,

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

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

  /*appId: 'xxxxxx',

    timestamp: xxxxx,

    nonceStr: 'xxxxx',

    signature: 'xxxxx',*/

 

    jsApiList: [

      // 所有要调用的 API 都要加到这个列表中

    'checkJsApi',

        'onMenuShareTimeline',

        'onMenuShareAppMessage',

        'onMenuShareQQ'

    ]

  });

  wx.ready(function () {

 

  // 2. 分享接口

  // 2.1 监听"分享给朋友"，按钮点击、自定义分享内容及分享结果接口

 

    wx.onMenuShareAppMessage({

       title: '微贸通电子商务（深圳）有限公司',

      desc: '众筹通-中国首家海外众筹营销服务商，致力于中国企业打造世界品牌.',

      link: '<?php  echo $url;?>',

      imgUrl: 'http://www.ugomi.com/logogogo.png',//自定义图片地址

      trigger: function (res) {

       // alert('用户点击发送给朋友');

      },

      success: function (res) {

       // alert('已分享');

        window.location.href = 'https://www.ugomi.com';

      },

      cancel: function (res) {

        alert('已取消');

      },

      fail: function (res) {

        alert(JSON.stringify(res));

      }

    });

 

  // 2.2 监听"分享到朋友圈"按钮点击、自定义分享内容及分享结果接口

    wx.onMenuShareTimeline({

      title: '微贸通电子商务（深圳）有限公司',

      link: '<?php  echo $url; ?>',

      imgUrl: 'http://www.ugomi.com/logogogo.png',//自定义图片地址

      trigger: function (res) {

       // alert('用户点击分享到朋友圈');

      },

      success: function (res) {

        //alert('已分享');

        window.location.href = 'http://www.ugomi.com';

      },

      cancel: function (res) {

        alert('已取消');

      },

      fail: function (res) {

        alert(JSON.stringify(res));

      }

    });

  });

</script>

<!---weixin fenxiang api end-->