[PHP] Engine Question

[PHP List]

Hi,
I am trying to update my server to php4. Everything seemd to compile fine.
httpd -l shows mod_php4.c in the list.

I used to use these entries in my httpd.conf to specifically turn php on in certain 
dirs instead of default on for everyting.

<Directory "/dir/dir/dir">   
php3_engine on
</Directory>

But I cannot find a combo that works now, I allways get an error.  How do I do this 
with php4?