My iPhone 4s battery got drained while playing games, and now it won't open even if im charging. what can i do?.

My phone's battery got drained while playing games and now it wont open if i connect it to my charger,?.what can i do? my phone was given to me as a gift from the a relative in the US and im from the Philippines. How can i fix it? Do i need to bring it to any apple center to have it replaced? or is there a quick fix to this problem?...