2022如何实现小程序发送服务通知

https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET

public function test(){
$appId = '';
$appSecret = '';
$token = file_get_contents("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".$appId."&secret=".$appSecret);
$token = json_decode($token);
$token = $token->access_token;
db('token')->where('id',1)->update(['access_token'=>$token]);//覆盖上一条access_token
}

$token = db('token')->find();
$token = $token['access_token'];

①设计form_id表结构
form_id有2个条件,第一个是仅7天内有效,第二个是仅对创建form_id的用户有效,针对这2个要求建立如下表
创建时间用户id
idcreateTimeopenIdform_id
id作为主键自增不用解释
createTime作为找到过期form_id的标志,设置定时任务,删除过期form_id
openId用来找到用户自己的form_id来使用
②取到form_id


    确定

// pages/index/index.js
form_id: function(e) {
    wx.request({
        url: 'test.com/index/index/form_id',//自行替换接口
        method: "POST",
        data: {
            form_id: e.detail.formId,
            openId: openId//自行获取当前用户openId
        },
        header: {
            'content-type': 'application/x-www-form-urlencoded'
        }
    })
},
//test.com/index/index/form_id
public function form_id(){
    if (empty($_POST)) {die;}
    $form_id = $_POST['form_id'];
    if ($form_id == 'the formId is a mock one'){die;}//过滤开发工具生成的form_id
    $openId = $_POST['openId'];
    if (!$openId) {die;}
    $data = compact('form_id','openId');
    db('form_id')->insert($data);
}
③使用form_id
public function test(){
    $openId = '';
    $form_id = db('form_id')->where('openId',$openId)->order('id')->field('form_id')->find();
    $form_id = $form_id['form_id'];
}
④定时删除过期form_id
public function test(){
    $time = time()-518400;//保证form_id可用性删除6天前的form_id
    db('form_id')->where('createTime','<',$time)->delete();
    //将该方法每天执行一次
}

public function message($data){
    //获取form_id
    $form_id = db('form_id')->where('openId',$openId)->order('id')->find();
    if (!$form_id) {die;}
    $form_id = $form_id['form_id'];
    db('form_id')->where('form_id',$form_id)->delete();
    //获取access_token
    $access_token = db('token')->where('id',1)->find();
    $access_token = $access_token['access_token'];
    //获取消息内容
    $openId = $data['openId'];
    $title = $data['title'];
    $data1 = $data['data1'];
    $data2 = $data['data2'];
    $request_url='https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token='.$access_token;
    $request_data=[
        'touser' => $openId,
        'template_id' => '',//表id
        'page'  =>  'pages/test/test?data1='.$data1.'&data2='.$data2,//本消息点击后跳转到的页面
        "form_id"   =>  $form_id,
        'data'  =>  [
            'keyword1'  =>  [
                'value' =>  $title
            ],
            'keyword2'  =>  [
                'value' =>  $data1
            ],
            'keyword3'  =>  [
                'value' =>  $data2
            ]
        ],
        'emphasis_keyword'  =>  "keyword1.DATA"//消息中要放大的内容
    ];
    $return=json_decode($this->request($request_url,$request_data),true);//发送消息,并读取返回值
    return $return;
}
//上面的$this->request方法
public function request($url, $data=null)
{
    $headers=array('Content-type:application/json;charset=UTF-8','Accept:application/json','Cache-Control:no-cache','Pragma:no-cache');
    $curl=curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
    if (!empty($data)) {
        $data=json_encode($data);
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
    }
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
    $output=curl_exec($curl);
    curl_close($curl);
    return $output;
}

crontab -e

1.* * * * *
这5个参数分别表示定时任务的执行时间,每个参数与上个参数隔一个空格,分别为(分)(时)(天)(月)(星期),下面举例子
* * * * *//每分钟执行一次
0 * * * *//每小时的第0分钟执行一次
*/5 * * * *//每5分钟执行一次
* 23 * * *//每天的23点执行一次
* * 1 * *//每月1号执行一次
* * * */2 *//每2个月执行一次
0 0 * * 6//每周6的0点0分执行一次

* */1 * * */usr/bin/php /项目路径/index.php /index/index/getToken
* 4 * * */usr/bin/php /项目路径/index.php /index/index/delForm_id
* * * * */usr/bin/php /项目路径/index.php /index/index/message

//CentOS5/CentOS6
/sbin/service crond restart
//CentOS7
/bin/systemctl restart crond.service