- the CGI-based interpreter, xbase support binaries, and php2 converter
- compiled-in support for Berkeley DB (ndbm), yp, zlib, dBase (xbase),
and filePro
- the ability to compile PHP3 extensions as dynamic modules (such as support
for MySQL/PostgreSQL/freeODBC) that may be exchanged freely between
different server interfaces to PHP (abstractions.c and php.h/tls.h patches)