Php in CMS pages

[Akui]

As far as I've already read, you cannot add php directly to a CMS page, but you can add it to a block then add that to the CMS page.

So why when adding it to a static block, would it comment out my code like so?

[jimdominogbea2]

Is there an answer to this question?  I am trying to the same, add php directly to the pages and have it render on the page.  If you can't put it in a page or block, how does one go about adding custom PHP code to their site?