YES they will ask for it,are u in visit visa or settlement,if tourist visa only,you dont need to take one,and if you are for settlement ,go CFO as soon as you can,they (naia) wont let you fly if you dont have sticker on your passport
come there b4 9 am,in about 2-3 hours ,before lunch,you'll gonna have sticker (not whole day

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http://filipinaroses.com/showthread....&highlight=cfo
p.s
they only ask my passport with the stamp on it,nothing else,i just dont know the other CFO location if what requirement they want