Is there any way to get accepted in PhD program without masters?
In most European countries following the Bologna process, a master's degree is a "hard" prerequisite for being accepted into a PhD program. There is no easy way around this, in large part because the PhD typically encompasses only the research phase of a standard US PhD program. By skipping or omitting the master's degree, one would have a "weaker" degree than someone who completed the master's.

Your best bet would be to find a PhD program which offers a master's program as "preadmission" to the PhD program. Not all doctoral programs offer such master's degrees, but many programs designed to attract international students will.