Ajax
https://stackoverflow.com/questions/38729177/insert-data-into-mysql-database-using-ajax-in-php
https://steemit.com/utopian-io/@sogata/how-to-insert-data-to-mysql-from-php-using-jquery-ajax
https://stackoverflow.com/questions/38729177/insert-data-into-mysql-database-using-ajax-in-php
https://steemit.com/utopian-io/@sogata/how-to-insert-data-to-mysql-from-php-using-jquery-ajax