The peso (Filipino: piso) (sign: ₱; code: PHP) is the currency of the Philippines. It is subdivided into 100 centavos (Spanish) or sentimo (Filipino). Before 1967, the language used on the banknotes and coins was English and so “peso” was the name used. The language was then changed to Pilipino (the name of the Filipino language then) and so the currency as written on the banknotes and coins is piso.
The peso is usually denoted by the symbol ““. This symbol was added to the Unicode standard in version 3.2 and is assigned U+20B1 (₱). Due to the lack of font support, the symbol is often substituted with a simple “P”, a P with one horizontal line instead of two (available as the peseta sign, U+20A7 (₧), in some fonts), as “PHP”, or “PhP”.
Philippine banknotes are currently issued in the following denominations:
Source and more: http://en.wikipedia.org/wiki/Philippine_peso