Forgot to grease and put parchment paper on the bottom of my pan. What is the best way to get the cake out of the pan without ruining the cake or having it fall apart? Help

I had this happen when I asked my husband to bake a cake for me, he forgot the step of "greasing the pans", while it was still hot from the oven, we took a butter knife around the edges to loosen it, and flipped it out right away instead of letting it rest first, we did have to tap on the bottom of the pan to loosen the cake, but it did come out in one piece, thankfully!! Good luck!!!