Canada permanent resident with Filipino passport want to enjoy the 72-hour free transit

Good Afternoon,

Me and my boyfriend are planning to visit our country Philippines from Toronto. Since we're stopping over at Shanghai airport we're thinking of staying there for a few days to visit the country. I've read that there is a 72 hrs free transit if we're travelling by air but you can't leave the transit city and we want to visit Great Wall of china (Beijing). I am a Canadian citizen (canada passport) while my boyfriend is still Filipino citizen (filipino passport) but he's a permanent resident of Canada; still waiting for his citizenship. What are our options? Do we need transit visas? If so, how much does that cost? Let me know

Thanks,
Eizvone