run php from jailed shell (and other commands)

I would like to run php from a jailed shell (Chroot Shell = Jailkit).

For example:

PHP:

#!/usr/bin/env php
<?php
    // my code
?>


Also, I would like enable some other commands like ping and traceroute.

How can I do that?

How dangerous is it?

Thanks for any help.

 

Nobody wants to help me?