Start two application on docker container

I want to start two application on docker container.

I already put start commands on ENTRYPOINT

ENTRYPOINT python3 i2c_mux.py && ./helium_gateway -c settings.toml server && php app.php start

ENTRYPOINT is above

Fisrt python application starts and finish. Does not create any problem.

But, if you start other two applications, they will start to work and never stop. They will creates logs etc.

When i put ./helium_gateway application before, this will start and php app.php never start
When i put php app.php application before, this will start and ./helium_gateway application never start

I need a small help.