微信开发 分享功能 php,自定义微信分享功能

内嵌在微信中的网页，右上角都会有一个默认的分享功能。如下图所示，第一个为自定义的效果，第二个为默认的效果。实现了自定义的分享链接是不是更让人有点击的欲望？下面讲解下开发的过程。

一：准备设置js 借口安全域名：

这需要使用微信的jssdk，先需要在微信公众号后台进行设置：公众号设置-->功能设置-->JS接口安全域名。

二：前端配置

首先在前端页面引入jssdk 的js 文件

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

然后进行前端配置：

  wx.config({     debug: true,//调试模式    appId: '<?php echo $signPackage["appId"];?>',//     timestamp: <?php echo $signPackage["timestamp"];?>,//生成签名的时间戳    nonceStr: '<?php echo $signPackage["nonceStr"];?>',//生成签名的随机串    signature: '<?php echo $signPackage["signature"];?>',       jsApiList: ['onMenuShareAppMessage','onMenuShareTimeline']// 所有要调用的 API 都要加到这个列表中  });         wx.ready(function() {             wx.onMenuShareAppMessage({ //分享给朋友                title: '体验更有温度的日本', // 分享标题,可在控制器端传递                desc: '非常舒适的旅途',//分享的描述，可在控制器端传递                                  link: 'URL', // 分享链接，可在控制器端传递                 imgUrl: 'URL', // 分享图标 ，可在控制器端传递                success: function() {                     // 用户确认分享后执行的回调函数                 },                 cancel: function() {                     // 用户取消分享后执行的回调函数                 }             });             wx.onMenuShareTimeline({ //分享到朋友圈                title: '体验更有温度的日本',                 desc: '分享的描述',                                link: 'url', // 分享链接                 imgUrl: 'url', // 分享图标                 success: function() {                     // 用户确认分享后执行的回调函数                 },                 cancel: function() {                     // 用户取消分享后执行的回调函数                 }             });         });      </script>

三 后端php 代码：jssdk.php 可以从此处下载

jssdk-php.zip

<?phpnamespace Home\Controller;use Think\Controller;class IndexController extends Controller {    public function index(){            //分享朋友圈      $jssdk = new JSSDK("你的自己的appid", "你自己的appsecret");      $signPackage = $jssdk->GetSignPackage();      $this->assign('signPackage',$signPackage);            $this->display();    }    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;    }}

easy吧