.PHP3 File

The php3 file extension is related to PHP, a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

The php3 file contains PHP script, source code file, or page written in version 3.

A php3 file extension is related to the PHP a scripting language for web development. A php3 file stores source code written in PHP version 3.

How to open:

Use a PHP editor or specialised applications (Adobe Dreamweaver, Contribute). Use web browser (Firefox, Internet Explorer) to work with the *.php3 files.

How to convert:

You most likely won't find converters that will allow you to convert .php3 files straight to some other file types. However, you may encounteres parsers that allow for some sort of translation of the PHP content to other programming languages.