Cover up or take it off. Malaysia sits near the equator and is a hot and humid country. Take it off, but not everything, because Malaysia has its wet season, too, which varies depending on which part of the country you are visiting.
Tick tock. Time in Malaysia runs on the same time zone as the Philippines, at GMT +8 hours.
Plug it in. If your gadgets are dying, plug it in... but only if you have the right power plug: type G or three–pin rectangular blade plug at 240V.
Ka–ching. Malaysian currency is called the ringgit (MYR or RM). One Malaysian ringgit is about 13.6 Philippine pesos (check XE for current exchange rate). There are money changers at the airport, but from experience, you are better off just getting enough (to pay for your transfer out of the airport) exchanged here...get the rest of your money exchanged in the city.
Ring ring. If you need to get a SIM card while in the country, there are many booths at the airport selling these. Some SIM cards include a data plan.
Say what? The national language of Malaysia is Malay/Bahasa Malaysia, a language I don't speak. Good thing English is widely spoken in Malaysia. And if you know Mandarin, you're in luck, that's widely spoken, too.
Welcome. I am not sure how many international airports Malaysia has, but wiki says it's eight. What I do know is that if you're flying from the Philippines, you may fly direct to Malaysia via Kuala Lumpur, Kota Kinabalu, or Miri.