It is where your webhost has the php executable file. If it is green on the install screen that means Dolphin found it for you.. if it isn't you might have to call your webhost and ask them what the path is.
if you have access to root, you can have the server tell you each of those paths. login to root and at the prompt type
which php
hit enter,
it will display the path for you
you can follow this with each of the paths yo u are trying to find.
composite
mogrify
and whatever the other one was.
which php
hit enter,
it will display the path for you
you can follow this with each of the paths yo u are trying to find.
composite
mogrify
and whatever the other one was.
later,
DosDawg