[TYPO3] including a php file

[m.golshan]

Dear all;

I want to create a content that includes a .php file.

I installed the extension "LumoNet PHP include (lumophpinclude)" , But when
I import a php file with this plug in, I get an error like this: 

 

1: Fileextension 'php' not allowed.

(tt_content:446:pi_flexform)

 

Where is my wrong?

What should I do?

Thanks a lot . . .