I am going to show you how the chat bot work when customer ask any question.Sometimes we don't have enough time to chat with customer being online 24 hrs.On the other hand customer is not interested to read the FAQ (Frequently asked questions).So what is the solution.We can make customer happy by replying immediate answer of their question with a chat bot. So how can we make a chat bot we will have a list of predefined question and answer into database table When they will ask a question we will count the matching word into the predefined questions in table and calculate the maximum matching words from the table's question list and finally we will take decision that the answer is the answer field of same record of that maximum words of the customer's sending question

Admin Section :

http://yourdomain.com/index.php/admin/login
if any sub folder 
http://yourdomain.com/ your-folder-name /index.php/admin/login

look userid and password from users table

Front End : click chat icon to open chat box

Admin Panel : Add Question & Answer pair in chat table  

Material Used:

HTML,CSS,JS
PHP 8.1
CodeIgniter 3.1.11 Framewok
MYSQL 5.6+

Settings & installation guide

MYSQL:

Database:

The database and its tables is in zip folder.In PhpMyAdmin make a database name and click import.now browse and select *.sql file from unzipped folder and after submitting You can see all the tables there.

PHP:

config.php:

Path : application/config/config.php
Enter your domain name here example : http://www.example.com

database.php:

Path : application/config/database.phpEnter your database name,username & password