Learn how to create a simple currency converter in PHP. You will create a simple form that will enable you to enter a value and an exchange rate for your currency. The script will then calculate the amount for the foreign currency and display the value on the page.

This is a part of my web development series that covers PHP, MySQL, HTML and JavaScript. Each of these classes can be booked separately but please make sure you meet the prerequisites stated below.

- HTML Form basics
- retrieving values from a form submit
- short overview on variables, constants and data types
- short overview on operators
- using number_format to display a number amount

You need a web space or a local Web Server that supports PHP. See Part 1 and/or Part 2 to find out how to get free web space or how to install your own Web Server.

You also need to know how to edit a text file and upload it to your web space (or alternatively copy it to your local web server’s folder).

The class is operating-system independent, so if you have an editor and a web space ready, you can create your PHP script on Windows, Macintosh or Linux. Please make sure you can use your tools (like your FTP client) since I can’t answer software specific questions in this class apart from PHP itself.

You also need some basic knowledge about HTML to understand how to use and submit a HTML form. If you know what a HTML tag is and how to build a simple HTML page with head, body and some text paragraphs, you will probably meet the requirements for this class.

If you have any doubts or questions, please don’t hesitate to contact me directly and ask.