What does JavaScript >> stand for? [duplicate]

Question

I'm translating a JavaScript algorithm into PHP, and I ran into the symbol >>, and I have no clue what it means. It's hard to search Google for symbols, so can anyone tell me what it means?

Answer 1

It's a bit shifting operator: http://www.contactor.se/~dast/fpl-old/language/shift.HTML

Answer 2

It is a sign-propagating right shift. Many, many, languages have this operator.

Wikipedia has a good article on the subject. My first link has a few examples and an explanation.