If you are from USA you can stay up to 30 days without visa or if you are near any embassy or Philippines consulate ..you can walk-in and get a visa same day...or you can make a short trip to any neighbor country like Thailand for a day and 30 day stay will start over again .
Where will you be coming from? If USA, you don't need to get a visa, your passport will be fine but make sure you have a roundtrip ticket to show the immigration officer and don't forget to extend your stay before ur 30 or 31 day stay is over and you need to pay for that as well.
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