That is clearly a function of how PHP's database access works, not
much of anything to do with OpenACS.
Are you running PHP in AOLserver? From your previous questions I
assume you are.
First of all, why the heck do you want to call PL/SQL from PHP? Why
not just call the PL/SQL from Tcl?
If you've ever done any AOLserver C programming, it probably wouldn't
be too hard to hack in a simple interface to let you
call aribtrary Tcl code from PHP.
That should let you use the OpenACS DB API (including all use of
PL/SQL) from PHP, although in a somewhat kludgy fashion. From there
you could go on to write a nicer PHP wrapper to the OpenACS DB API, if
you cared.
It would be a fairly neat little project, the only question is, why
bother? My understanding is that, basically, PHP sucks compared to
the Tcl and ADP facilities already present in AOLserver. Thus AFAIK,
everyone using PHP in AOLserver is doing so only in order to run some
off the shelf PHP app (like webmail) that they happen to like, not to
do real development. So they generally just do the minimum amount of
integration work necessary to get that app running nicely on their
sites, rather than putting the time into giving PHP access to more of
AOLserver and OpenACS's facilities.
And that's probably why no one has done this already...
