ok.
I readed that DDD 3.3.9 began to support dbg debugger for php scripts.
what's new in DDD 3.3.9 is here: http://sourceforge.net/project/shownotes.php?release_id=247873

so i compilled dbg, and made php works with it - no problem.
compilled DDD - no problem.

problem is how to make them work together.

when i started
./ddd --debugger /usr/share/extensions/no-debug-non-zts-20020429/dbg.so
it write in recent massages:
Running DBG (pid 12652, tty /dev/pts/14)...Segmentation fault
and DDD wait until dbg gets ready..

If i run ./ddd --dbg or just ./ddd
it write
Running DBG (pid 12685, tty /dev/pts/14)...Exit 127
and DDD wait until dbg gets ready..

so maybe somebody here knows how to fix this?

DDD is a client frontend, while dbg.so is a server module intended to work with php engine only. To work from DDD you have to compile dbg-cli console. Take a look in dbg2 project at sourceforge.