tp5框架中使用php微信分享功能实现：

tp5框架中使用php微信分享功能实现：

在extend/lib目录下导入php的demo：

修改jssdk.php使用tp5自带的Cache缓存功能保存access_token分享如下：

<?php

namespace lib;

use \think\Cache;

class JSSDK {

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() {

$data = Cache::get('wx_jsapi_ticket');

if (!$data) {

$ticket = $data;

} else {

$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) {

Cache::set('wx_jsapi_ticket', $ticket, 7000);

}

}

return $ticket;

}

 

private function getAccessToken() {

$data = Cache::get('wx_access_token');

if ($data) {

$access_token = $data;

} else {

$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";

$res = json_decode($this->httpGet($url));

$access_token = $res->access_token;

if ($access_token) {

Cache::set('wx_access_token', $access_token, 7000);

}

}

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_URL, $url);

$res = curl_exec($curl);

curl_close($curl);

return $res;

}

}

?>

在相应的控制方法中调用该类：

use lib\jssdk;

public function leaderboard()
{
        $jssdk = new JSSDK("yourAppID", "yourAppSecret");
        $signPackage = $jssdk->GetSignPackage();
        $this->assign("data",$signPackage);
        return $this->fetch();
}
前端页面实现代码如下：

<script src="http://res.wx.qq.com/open/js/jweixin-1.4.0.js"></script>

<script src="https://res.wx.qq.com/open/js/jweixin-1.4.0.js"></script>

<script>

$(document.body).ready(function(){

wx.config({

debug: false,

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

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

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

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

jsApiList: [

'onMenuShareAppMessage',

'onMenuShareTimeline',

]

});

 

wx.ready(function () { //需在用户可能点击分享按钮前就先调用

wx.onMenuShareAppMessage({

title: '校园食品安全科普竞赛', // 分享标题

desc: '您的好友邀请您参加2018年，深圳市校园食品安全科普竞赛活动！', // 分享描述

link: '  ', // 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: '', // 分享图标

}, function(res) {

//这里是回调函数

});

wx.onMenuShareTimeline({

title: '您的好友邀请您参加2018年，深圳市校园食品安全科普竞赛活动！', // 分享标题

link: '   ', // 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: '', // 分享图标

}, function(res) {

//这里是回调函数

});

});

 

</script>

引导用户进行分享效果如下：