index.php

<?php
require __DIR__ . '/vendor/autoload.php';

use \LINE\LINEBot;
use \LINE\LINEBot\HTTPClient\CurlHTTPClient;
use \LINE\LINEBot\MessageBuilder\MultiMessageBuilder;
use \LINE\LINEBot\MessageBuilder\TextMessageBuilder;
use \LINE\LINEBot\MessageBuilder\StickerMessageBuilder;
use \LINE\LINEBot\SignatureValidator as SignatureValidator;

include 'replysingle.php';
// set false for production
$pass_signature = true;

// set LINE channel_access_token and channel_secret
$channel_access_token = "";
$channel_secret = "";

// inisiasi objek bot
$httpClient = new CurlHTTPClient($channel_access_token);
$bot = new LINEBot($httpClient, ['channelSecret' => $channel_secret]);

$configs =  [
    'settings' => ['displayErrorDetails' => true],
];
$app = new Slim\App($configs);

// buat route untuk url homepage
$app->get('/', function ($req, $res) {
    echo "Welcome at Slim Framework";
});

// buat route untuk webhook
$app->post('/webhook', function ($request, $response) use ($bot, $httpClient, $pass_signature, $channel_secret) {
    // get request body and line signature header
    $body        = file_get_contents('php://input');
    $signature = isset($_SERVER['HTTP_X_LINE_SIGNATURE']) ? $_SERVER['HTTP_X_LINE_SIGNATURE'] : '';

    // log body and signature
    file_put_contents('php://stderr', 'Body: ' . $body);

    if ($pass_signature === false) {
        // is LINE_SIGNATURE exists in request header?
        if (empty($signature)) {
            return $response->withStatus(400, 'Signature not set');
        }

        // is this request comes from LINE?
        if (!SignatureValidator::validateSignature($body, $channel_secret, $signature)) {
            return $response->withStatus(400, 'Invalid signature');
        }
    }

    // kode aplikasi nanti disini
    $data = json_decode($body, true);
    if (is_array($data['events'])) {
        foreach ($data['events'] as $event) {
            if ($event['type'] == 'message' || $event['type'] == 'postback') {
                if (
                    $event['source']['type'] == 'group' or
                    $event['source']['type'] == 'room'
                ) {
                    //message from group / room 
                    if ($event['type'] == 'message') {
                        $input = strtolower($event['message']['text']);
                    } elseif ($event['type'] == 'postback') {
                        $input = strtolower($event['postback']['data']);
                    }
                    $text = explode(":", $input);
                    $result = replyone($input, $text, $httpClient, $bot, $event);             
                } else {
                    //message from single user
                    if ($event['type'] == 'message') {
                        $input = strtolower($event['message']['text']);
                    } elseif ($event['type'] == 'postback') {
                        $input = strtolower($event['postback']['data']);
                    }
                    $text = explode(":", $input);
                    $result = replyone($input, $text, $httpClient, $bot, $event);
                    // or we can use replyMessage() instead to send reply message
                    // $textMessageBuilder = new TextMessageBuilder($event['message']['text']);
                    // $result = $bot->replyMessage($event['replyToken'], $textMessageBuilder);

                    return $response->withJson($result->getJSONDecodedBody(), $result->getHTTPStatus());
                }
            } elseif ($event['type'] == 'join'){
                $result = $bot->replyText($event['replyToken'], "Hi, nice to meet you\nThis bot is for viewing and searching for information about the anime you like, please type 'Menu' to show all available keywords :)");
                return $response->withJson($result->getJSONDecodedBody(), $result->getHTTPStatus());
            }
        }
    }
});

$app->run();