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Here you get the all state data by change the country and all city data by chnage the state.

Folder / file structure :

INDEX.PHP : 

In which use the html for listing the country, city and state.

EXTRA.PHP :

Here we use the CSS and some javascript for display the loader.

CONTROLLER.PHP : 

Here we use for get the all country, state and city data from the mysql database.

MODAL.PHP :

Here we made the database connection like add database config

LOCATION.SQL :

Here you get the 3 table ( Country,State and City )

AJAX : 

• CHANGE-CITY.PHP
• CHANGE-STATE.PHP

In this folder get the state and city data when user change the dropdown of country, state and city.

Technology use :

• PHP 
• AJAX
• JAVASCRIPT
• JQUERY
• MYSQL

!! Enjoy the Code !!