This Basic Billing System in PHP and MySQL allows you to dynamically generate an invoice, entering the product codes, product id, price, percentage of taxes and the amount paid by the customer.
The system consists of a login, which you can access with the usual credentials, in the applications of this blog at PHP, Python and Javascript
If you require more information about the login process in PHP you can see the publication below (in spanish):
Commissioning of the Basic Billing System in PHP and MySQL on a local server
Previous Applications
To install the application on a local server, I recommend the prior installation of the following applications:
XAMPP, Git, Visual Studio Code
XAMPP is the application in charge of implementing a apache server for them to work scripts PHP on a local computer.
Git is the world's most widely used repository manager, with which you can cleanly download code from GitHub.
Visual Studio Code is the world's most popular code editor, which I highly recommend in virtually every post on this blog.
Download GitHub App
The following is the GitHub repository download link for the application that allows you to define the difference between two dates on a local server:
Configuration of the Basic Billing System in PHP and MySQL for its operation on your computer
C:\xampp\htdocs
git clone https://github.com/configuroweb/factura-sencilla.git
http://localhost/phpmyadmin/index.php
Database of the Basic Billing System
For the application to work correctly, from phpmyadmin, you must create the database with the name factura, later from accessing the SQL section and paste the code found in the following link:
http://localhost/factura-sencilla/
Upload of the Basic Billing system to a hosting
If you still have doubts about the process of setting up the application on a local server
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