I'm half Thai half Egyptian, living in Bangkok feel free to contact me if you need help with whatever.
Places to eat - they are plenty of places depends on what you fancy depends on budget, cuisine. so that's a broad question however if you're looking for a middle eastern food I'd totally recommend "Nadimos" - Lebanese restaurant (look it up on google) bear in mind Middle Eastern food in general are more expensive.
Places for children - also they are plenty of water parks, theme parks, and indoors parks and aquarium.
Siam paragon mall aquarium, Dusit Zoo, Siam park, dream park, Cartoon Network water park, etc
As far as for nightlife you have two options if you don't want to spend too much money head to Khao San backpacking haven.
If you want to go somewhere fancy and nice head to thong lor it's an area full of nightclubs pretty fancy and of course RCA.
Best to go on Friday nights , Wednesdays and the weekends.
As I said feel free to ask me if you have any more questions or concerns.