Newb PHP in pages

[eru321]

Normally PHP can only be used from within other PHP code. In the case of GetSimple, you can only call functions from within the theme files.

If you want to be able to use PHP in the normal page editor, you will need a plugin. Chris’ Exec-PHP can help you out.

I've download the exec-php plugin but it seems not to work I mean if i write php code in the normal page editor.. the result is that you read on the page the php code i wrote..
i hope you can understand me better then i explein )