<?php
    class line{
        function webhook($webhook_object=null){
            if(!$webhook_object)return false;
            $obj = json_decode($webhook_object);
            $type = $obj->events[0]->type;
            $userId = $obj->events[0]->source->userId;
            $replyToken = $obj->events[0]->replyToken;
            if($type==="follow"){
                $pdo = self::db();
                if($pdo){
                    $sql = "insert into user (userid)values(:userid)";
                    $sth = $pdo->prepare($sql);
                    $sth->bindValue(":userid",$userId,PDO::PARAM_STR);
                    $sth->execute();
                }
            }
            if($type==="unfollow"){
                $pdo = self::db();
                if($pdo){
                    $sql = "delete from user where userid = :userid";
                    $sth = $pdo->prepare($sql);
                    $sth->bindValue(":userid",$userId,PDO::PARAM_STR);
                    $sth->execute();
                }
            }
            if($type==="message"){

            }
        }

        function db(){
            try {
                $pdo = new PDO(DSN,USERNAME,PASSWORD);
                return $pdo;
            } catch (\Throwable $th) {
                //throw $th;
                return false;
            }
        }
    }


    if($data = file_get_contents('php://input')){
       print line::webhook($data);
    }

<?php
    class blog_post_msg_line{

        function db(){
            try {
                //code...
                return new PDO(DSN,USERNAME,PASSWORD);
            } catch (\Throwable $th) {
                //throw $th;
                return false;
            }
        }

        function rss(){
            $obj = simplexml_load_file("https://zip358.com/feed");
            $post_message[2] = $obj->channel->item[0]->title ."\n". $obj->channel->item[0]->link;
            $post_message[1] = $obj->channel->item[1]->title ."\n". $obj->channel->item[1]->link;
            $post_message[0] = $obj->channel->item[2]->title ."\n". $obj->channel->item[2]->link;
            return $post_message;
        }

        function main(){
            $pdo = self::db();
            if($pdo){
                $post_message = self::rss();
                $sql = "select userid from user;";
                $sth = $pdo->query($sql);
                $res = $sth->fetchAll(PDO::FETCH_ASSOC);
                if($res){
                    foreach($res as $key=>$val){
                        $user_id = $val["userid"];
                        self::line_post($user_id,$post_message);
                    }
                }
                
            }
            
        }

        function line_post($user_id ='',$post_message=null){
            $text = [
                [
                    'type' => 'text',
                    'text' =>"最新の記事をお届けします"
                ],
                [
                'type' => 'text',
                'text' =>$post_message[0]
                ],
                [
                    'type' => 'text',
                    'text' =>$post_message[1]
                ],
                [
                    'type' => 'text',
                    'text' =>$post_message[2]
                ]                                
            ];
            
            $message = [
                'to' => $user_id,
                'messages' => $text
            ];
            
            $message = json_encode($message);
            
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Bearer ' . ACCESS_TOKEN, 'Content-Type: application/json'));
            curl_setopt($ch, CURLOPT_URL, 'https://api.line.me/v2/bot/message/push');
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
            curl_setopt($ch, CURLOPT_POSTFIELDS, $message);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            $res = curl_exec($ch);
            curl_close($ch);      
        }
    }

    if($argv[0]){
        blog_post_msg_line::main();
    }