微信JS-SDK实现自定义分享功能分享

<?php
namespace app\index\controller;
class Jssdk extends Base{
    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(APP_PATH."jsapi_ticket.php"));
        if ($data->expire_time < time()) {
            $accessToken = $this->getAccessToken();
            file_put_contents(APP_PATH."accessToken.txt",$accessToken);
            if($accessToken){
                // 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;
                    $this->set_php_file(APP_PATH."jsapi_ticket.php", json_encode($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(APP_PATH."access_token.php"));
        //file_put_contents(APP_PATH."data.txt",$data);
        if ($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=$this->appSecret";
            file_put_contents(APP_PATH."url_acc.txt",$url);
            $res = json_decode($this->httpGet($url));
            //file_put_contents(APP_PATH."res.txt",$res);
            $access_token = $res->access_token;
            if ($access_token) {
                $data->expire_time = time() + 7000;
                $data->access_token = $access_token;
                $this->set_php_file(APP_PATH."access_token.php", json_encode($data));
            }
        } else {
            $access_token = $data->access_token;
        }
        return $access_token;
    }

    private function httpGet($url) {
        file_put_contents(APP_PATH."url_http.txt",$url);
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        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);
    }
}

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

<script>
    wx.config({
        debug: false,
        appId: "{$app_id}",
        timestamp: "{$share_info['timestamp']}",
        nonceStr: "{$share_info['nonceStr']}",
        signature: "{$share_info['signature']}",
        jsApiList: [
            'onMenuShareTimeline'
        ]
    });

    wx.ready(function() {
        id = "{$id}",
        wx.onMenuShareTimeline({
            title: "{$shop['title']}", // 分享标题
            link: "{$url}/.?fid={$id}", // 分享链接
            imgUrl: "{$url}__SHOPPIC__/{$shop.pic}", // 分享图标
            success: function() {
                    $.ajax({
                    type:"POST",
                    url:"/index/fenxiao/ajaxShare",
                    data:{id: id},
                    success:function(data){
                        if(data == 1){
                            alert('分享成功')
                        }else{
                            alert('分享失败')
                        }
                    }
                });
                
            },
            cancel: function() {
				alert('分享失败');
                // 用户取消分享后执行的回调函数
            }
        });
    });
    wx.error(function(res){
    alert('验证失败')
    });
</script>

　　我也忘记在哪里看来的,分享接口用的是jweixin-1.0.0.js, onMenuShareTimeline 即将废除 但也不影响使用,废除以后换一下就ok.目前可以用.具体查看https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421141115

类中txt文档不用写入也没有事