Hi, I just wanna ask if a visa is needed by an American who wanted to visit the Philippines? Thanks

Ask this in the PI regional forum. http://www.visajourney.com/forums/index.php?showforum=129

NO visa required for stays less than 21 days.

http://www.gov.ph/faqs/visa.asp

Amrican Citizens are automatically given 21 days visa when they enter our country. I wish its the same for us Filipinos when we want to come here

You can go for 21 days but then will need to see an immigration officer to get a 59 day extension. That usually costs about $60 or it used to but has probably gone up because of the decline of the dollar there.