[TYPO3] How to create extension of already written php file

[Jo Schneider]

Gayatri Agrawal wrote:

>Hi,
>
>I have a php file, I want to create a typo3 extension of that file.
>Anyone knows how to do the same.
>
>Thanks,
>Gayatri
>

There are several ways to do this. A good source to learn the correct 
ways is the official book. Some keywords are:

USER, USER_INT
PHP_SCRIPT, PHP_SCRIPT_INT
PHP_SCRIPT_EXT
Ext.: ExtDevEval

Maybe with this keywords you can find more information in the net.

Greetings
Jo