【PHP】H5微信网页自定义分享功能实现

<?php


namespace app\index\lib\wechat;

header("Access-Control-Allow-Origin:*");
class share
{
    public $appid;
    public $secret;
// 步骤1.appid和secret
//header("Access-Control-Allow-Origin:*");
//$appid = "appid";
//$secret = "secret";
    public function __construct($appid,$secret)
    {
        $this->appid = $appid;
        $this->secret = $secret;

    }


// 步骤2.生成签名的随机串
    public function nonceStr($length){
        $str = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJK1NGJBQRSTUVWXYZ';//随即串，62个字符
        $strlen = 62;
        while($length > $strlen){
            $str .= $str;
            $strlen += 62;
        }
        $str = str_shuffle($str);
        return substr($str,0,$length);
    }

// 步骤3.获取access_token
    public function http_get($url){
        $oCurl = curl_init();
        if(stripos($url,"https://")!==FALSE){
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
            curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
            curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1
        }
        curl_setopt($oCurl, CURLOPT_URL, $url);
        curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );
        $sContent = curl_exec($oCurl);
        $aStatus = curl_getinfo($oCurl);
        curl_close($oCurl);
        if(intval($aStatus["http_code"])==200){
            return $sContent;
        }else{
            return false;
        }
    }
// 步骤4.获取ticket
public function getTicket(){
    $result = $this->http_get('https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid='.$this->appid.'&secret='.$this->secret);
    $json = json_decode($result,true);
    $access_token = $json['access_token'];
    $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$access_token";
    $res = json_decode ( $this->http_get ( $url ) );
    return $res->ticket;
}

// 步骤5.生成wx.config需要的参数
//$surl = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
//$ws = getWxConfig( $ticket,$surl,time(),nonceStr(16) );
//    public function getWxConfig($jsapiTicket,$url,$timestamp,$nonceStr) {
    public function getWxConfig() {
        $jsapiTicket=$this->getTicket();
        $url = 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
        $timestamp = time();
        $nonceStr = $this->nonceStr(rand(8,15));
        $string = "jsapi_ticket=".$jsapiTicket."&noncestr=".$nonceStr."&timestamp=".$timestamp."&url=".$url;
        $signature = sha1 ($string);
        $WxConfig["appId"] = $this->appid;
        $WxConfig["nonceStr"] = $nonceStr;
        $WxConfig["timestamp"] = $timestamp;
        $WxConfig["url"] = $url;
        $WxConfig["signature"] = $signature;
        $WxConfig["rawString"] = $string;
        return $WxConfig;
    }

}

    public function getWxShareConfig(){
        $instanceWxShare = new \app\index\lib\wechat\share('appid','secret');
        return $instanceWxShare->getWxConfig();
    }

<script src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>
    <script>
    // console.log(timestamp);
    wx.config({
        debug: false,
        appId: '{$wxsc.appId}',
        timestamp: '{$wxsc.timestamp}',
        nonceStr: '{$wxsc.nonceStr}',
        signature: '{$wxsc.signature}',
        jsApiList: ['updateAppMessageShareData','updateTimelineShareData']
    });

        wx.ready(function () {   //需在用户可能点击分享按钮前就先调用
            wx.updateAppMessageShareData({
                title: '医博：', // 分享标题
                desc: '专业肛肠、胃肠、中医交流平台，为业界名专家们搭建教学、学术平台，为专业医生提供手术直播、科普交流基地，为学者提供学习、沟通、上升平台。', // 分享描述
                link: 'https://wx.kmyebo.com', // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
                imgUrl: 'https://wx.kmyebo.com/yb_share_icon.jpg', // 分享图标
                success: function () {
                    // 设置成功
                }
            })
        });
        wx.ready(function () {      //需在用户可能点击分享按钮前就先调用
            wx.updateTimelineShareData({
                title: '医博：', // 分享标题
                link: 'https://wx.kmyebo.com', // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
                imgUrl: 'https://wx.kmyebo.com', // 分享图标
                success: function () {
                    // 设置成功
                }
            })
        });
</script>

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