Writing a Dead-Simple LINE Bot API in PHP

Overview

I wrote a script for the much-talked-about LINE Bot API in PHP.

As simple as possible = easy to customize

That was the goal, so I tried to limit the places you need to modify in order to use it.

What I Built

Type any random text → it replies “hello”
Type “perfect” → it replies “human”

It’s a truly simple thing that just responds like that.

If you customize that logic part, you can make your own bot.

Environment

• Sakura Rental Server VPS, CentOS release 6.7 (Final)
• PHP 5.6.16

For SSL, I used the free StartSSL. For obtaining and configuring it, please refer to the following.

無料SSL証明書発行しセキュリティでA+を取る！ 〜Apache編〜 - 長生村本郷Engineers'Blog

以下に移行しました。 kenzo0107.github.io

The Script

function getMessage is where you decide the message you want the bot to reply with.

If you call another API there, scrape a site, or otherwise fetch some information and return it, you’ve got yourself a simple message-replying LINE bot.

Here’s How It Looks!