bq_admin/public/wx4.php

<?php


define("TOKEN", "k8h5qu8znxxxxxxjazm76");  //填写自己的token,跟小程序后台填的一样即可

//秘钥
//05hkM8UIrrXoSGrJmCdFuU1mIeHDeyLdxTPd21fh5zQ


if (isset($_GET['echostr'])) {          //校验服务器地址URL
    valid();
} else {
    responseMsg();
}
function valid()
{
    $echoStr = $_GET["echostr"];
    if (checkSignature()) {
        header('content-type:text');
        echo $echoStr;
        exit;
    } else {
        echo $echoStr . '+++' . TOKEN;
        exit;
    }
}

function checkSignature()
{
    $signature = $_GET["signature"];
    $timestamp = $_GET["timestamp"];
    $nonce = $_GET["nonce"];

    $token = TOKEN;
    $tmpArr = array($token, $timestamp, $nonce);
    sort($tmpArr, SORT_STRING);
    $tmpStr = implode($tmpArr);
    $tmpStr = sha1($tmpStr);

    if ($tmpStr == $signature) {
        return true;
    } else {
        return false;
    }
}

function responseMsg()
{

//    $imgurl = "/upload/20200901/71c6b50cac917f080c2adb7d98817813.png";                                           //公众号二维码,相对路径,修改为自己的
//    $media_id = getMediaId($imgurl);                                    //获取图片消息的media_id
//    print_r($media_id);die;


    $postStr = file_get_contents('php://input');   //此处推荐使用file_get_contents('php://input')获取后台post过来的数据

    if (!empty($postStr) && is_string($postStr)) {
        $postArr = json_decode($postStr, true);
        if (!empty($postArr['MsgType']) && $postArr['Content'] == "1") {          //用户发送1,回复公众号二维码
            $fromUsername = $postArr['FromUserName'];                           //发送者openid
            $imgurl = "/upload/20200905/2320bba10b60c48a41156e281828610a.png";                                           //公众号二维码,相对路径,修改为自己的
            $media_id = getMediaId($imgurl);                                    //获取图片消息的media_id
            $data = array(
                "touser" => $fromUsername,
                "msgtype" => "image",
                "image" => array("media_id" => $media_id)
            );
            $json = json_encode($data, JSON_UNESCAPED_UNICODE);  //php5.4+
            requestAPI($json);
        } elseif (!empty($postArr['MsgType']) && $postArr['Content'] == "2") {      //用户发送2,回复图文链接
            $fromUsername = $postArr['FromUserName'];                           //发送者openid
            $data = array(
                "touser" => $fromUsername,
                "msgtype" => "link",
                "link" => array(                                          //修改下面几项为自己的
                    "title" => '最火壁纸',
                    "description" => '2020最火手机壁纸',
                    "url" => 'https://bizhi.tarfar.com/',
                    "thumb_url" => 'https://bizhi.tarfar.com/wp-content/uploads/2020/03/logo.png',
                )
            );
            $json = json_encode($data, JSON_UNESCAPED_UNICODE);  //php5.4+
            requestAPI($json);
        } elseif (!empty($postArr['MsgType']) && $postArr['Content'] == "3") {      //用户发送3,回复文字
            $fromUsername = $postArr['FromUserName'];                           //发送者openid
            $content = '你好,回复1关注公众号，回复2获取官网链接';                 //修改为自己需要的文字
            $data = array(
                "touser" => $fromUsername,
                "msgtype" => "text",
                "text" => array("content" => $content)
            );
            $json = json_encode($data, JSON_UNESCAPED_UNICODE);  //php5.4+
            requestAPI($json);
        } elseif (!empty($postArr['MsgType']) && $postArr['MsgType'] == 'image') {  //用户发送图片,这里示例为回复他公众号二维码
            $fromUsername = $postArr['FromUserName'];                           //发送者openid
            $imgurl = "/300-300.png";                                           //公众号二维码,相对路径,修改为自己的
            $media_id = getMediaId($imgurl);                                    //获取图片消息的media_id
            $data = array(
                "touser" => $fromUsername,
                "msgtype" => "image",
                "image" => array("media_id" => $media_id)
            );
            $json = json_encode($data, JSON_UNESCAPED_UNICODE);  //php5.4以上版本才可使用
            requestAPI($json);
        } elseif ($postArr['MsgType'] == 'event' && $postArr['Event'] == 'user_enter_tempsession') { //用户进入客服后马上回复，现在已失效,需要用户先发过消息
            $fromUsername = $postArr['FromUserName'];                           //发送者openid
            $imgurl = "/upload/20200905/2320bba10b60c48a41156e281828610a.png";                                           //公众号二维码,相对路径,修改为自己的
            $media_id = getMediaId($imgurl);                                    //获取图片消息的media_id
            $data = array(
                "touser" => $fromUsername,
                "msgtype" => "image",
                "image" => array("media_id" => $media_id)
            );
            $json = json_encode($data, JSON_UNESCAPED_UNICODE);  //php5.4+
            requestAPI($json);
        } elseif ($postArr['MsgType'] !== 'event') {        //用户发送其他内容,引导加客服
            $fromUsername = $postArr['FromUserName'];   //发送者openid
            $imgurl = "/miniapp300-300.png";            //客服微信二维码,相对路径
            $media_id = getMediaId($imgurl);            //获取图片消息的media_id
            $data = array(
                "touser" => $fromUsername,
                "msgtype" => "image",
                "image" => array("media_id" => $media_id)
            );
            $json = json_encode($data, JSON_UNESCAPED_UNICODE);  //php5.4+
            requestAPI($json);
        } else {
            exit;
        }

    } else {
        echo "empty";
        exit;
    }
}

function requestAPI($json)
{
    $access_token = get_accessToken();
    /*
     * POST发送https请求客服接口api
     */
    $url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=" . $access_token;
    //以'json'格式发送post的https请求
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
    if (!empty($json)) {
        curl_setopt($curl, CURLOPT_POSTFIELDS, $json);
    }
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    //curl_setopt($curl, CURLOPT_HTTPHEADER, $headers );
    $output = curl_exec($curl);
    if (curl_errno($curl)) {
        echo 'Errno' . curl_error($curl);//捕抓异常
    }
    curl_close($curl);
    if ($output == 0) {
        echo 'success';
        exit;
    }
}

/* 调用微信api，获取access_token，有效期7200s*/
function get_accessToken()
{
    $url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=wx3cfbc521f6537439&secret=c2ed0c450d8071eae35e683a054f6049'; //替换成自己的小程序id和secret
    @$weixin = file_get_contents($url);
    @$jsondecode = json_decode($weixin);
    @$array = get_object_vars($jsondecode);
    $token = $array['access_token'];
    return $token;
}

//获取上传图片的media_id
function getMediaId($imgurl)
{
    $token = get_accessToken();
    $url = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token={$token}&type=image";
    // echo $url;
    $ch1 = curl_init();
    $timeout = 10;
    $real_path = "{$_SERVER['DOCUMENT_ROOT']}$imgurl";//自动转成图片文件绝对路径,如果图片发送失败,检查PHP的$_SERVER['DOCUMENT_ROOT'的配置

//     echo $real_path;
    $data = array("media" => new CURLFile("{$real_path}"));//php5.6(含)以上版本使用此方法
   // print_r($data);
    curl_setopt($ch1, CURLOPT_URL, $url);
    curl_setopt($ch1, CURLOPT_POST, 1);
    curl_setopt($ch1, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch1, CURLOPT_CONNECTTIMEOUT, $timeout);
    curl_setopt($ch1, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch1, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($ch1, CURLOPT_POSTFIELDS, $data);
    $result = curl_exec($ch1);
     //print_r( $result);
    curl_close($ch1);
    if ($result) {
        $result = json_decode($result, true);
        return $result['media_id'];
    } else {
        return null;
    }
}