thinkphp通过微信公众平台API自定义分享链接的标题、描述和缩略图(不会出现invalid signature签名无效的错误)
获得access_token---------------------------------
https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=【appid】&secret=【secret】
获得ticket-------------------------------------------
https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=【access_token】&type=jsapi
微信JS接口签名校验工具------------------------------------
https://mp.weixin.qq.com/debug/cgi-bin/sandbox?t=jsapisign
access_token.json--------------------------------------------------
确保网站所在目录下有此文件，确保有权限读写
{"expire_time":1609213473,"access_token":"【这里是access_token】"}
jsapi_ticket.json--------------------------------------------------
确保网站所在目录下有此文件，确保有权限读写
{"expire_time":1609213473,"jsapi_ticket":"【这里是jsapi_ticket】"}
Controller页------------------------------
require_once "./Extend/jssdk.php" ;
$jssdk = new \JSSDK('【appid 】','【secret】');//这里填写自己的appid 和secret
$signPackage = $jssdk->GetSignPackage();
$this->assign("signPackage",$signPackage);
View页--------------------------------------
<head>里加入<script type="text/javascript" src="https://res.wx.qq.com/open/js/jweixin-1.6.0.js"></script>，在其它JS调用之上
<script>
wx.config({
debug: false,
appId: '{$signPackage["appId"]}',
timestamp: '{$signPackage["timestamp"]}',
nonceStr: '{$signPackage["nonceStr"]}',
signature: '{$signPackage["signature"]}',
jsApiList: [
//我只调用了两个分享接口,分别是朋友圈和个人,大家有其它需要可以去文档中查找接口
'onMenuShareTimeline',
'onMenuShareAppMessage'
]
});
wx.ready(function () {
var shareData = {
title: '{$sitename}', // 标题
desc: '一起来测试吧', // 描述
link: 'http://www.xunteam.cn/hts/', // 分享的URL，必须和当前打开的网页的URL是一样的
imgUrl: 'http://xunteam.cn/hts/public/images/logo.png' // 缩略图地址
};
wx.onMenuShareAppMessage(shareData);
wx.onMenuShareTimeline(shareData);
});
wx.error(function (res) {
alert(res.errMsg);//错误提示
});
</script>
jssdk.php----------------如果遇到两个json文件不更新问题，请注意json_encode和json_decode的使用，可打印转换后的值看看是否有问题，哪个打出来没问题就用哪一个，再打印$res的值，如果有错误会提示错误信息，我的就是白名单问题，明明设置了服务器的IP，结果打印出来不是这个IP，说是没有在白名单，我把这个打印出来的IP加入了白名单就好了
<?php
class JSSDK {
private $appId;
private $appSecret;
public function __construct($appId, $appSecret) {
$this->appId = $appId;
$this->appSecret = $appSecret;
}
public function getSignPackage() {
$jsapiTicket = $this->getJsApiTicket();
$protocol = (!empty($_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=$nonceStr×tamp=$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
$data = json_encode(file_get_contents("jsapi_ticket.json"));
if ($data->expire_time < time()) {
$accessToken = $this->getAccessToken();
// 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;
$fp = fopen("jsapi_ticket.json", "w");
fwrite($fp, json_decode($data));
fclose($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
$data = json_encode(file_get_contents("access_token.json"));
if ($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";
$res = json_decode($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_decode($data));
fclose($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;
}
}
?>
