is it possible for a philippine passport holder to get a tourist single entry chinese visa in HK?

i will be traveling in HK and i am planning to visit beijing for 5days before heading back to manila, is there a possibility for me to get my chinese tourist visa in HK? i am presently on a trip and i will no longer have time to go back to manila to secure a visa. will the stamps and travel history in my passport which includes visa grants from australia, japan, and new zealand, help in my application? if it is possible to get a tourist visa in HK, what are the requirements, how much and where to get it? thanks in advance,. cheers!