Advent Of Code 2015 Here are my Advent Of Code 2015 solutions, written in PHP. Progess Day 1 2 ✅ Day 1: Not Quite Lisp ✨ ✨ ✅ Day 2: I Was Told There Would Be No Math ✨ ✨ ✅ Day 3: Perfectly Spherical Houses in a Vacuum ✨ ✨ ✅ Day 4: The Ideal Stocking Stuffer ✨ ✨ ✅ Day 5: Doesn't He Have Intern-Elves For This? ✨ ✨ ✅ Day 6: Probably a Fire Hazard ✨ ✨ ⌚ Day 7: Some Assembly Required ⌚ Day 8: Matchsticks ⌚ Day 9: All in a Single Night ⌚ Day 10: Elves Look, Elves Say ⌚ Day 11: Corporate Policy ⌚ Day 12: JSAbacusFramework.io ⌚ Day 13: Knights of the Dinner Table ⌚ Day 14: Reindeer Olympics ⌚ Day 15: Science for Hungry People ⌚ Day 16: Aunt Sue ⌚ Day 17: No Such Thing as Too Much ⌚ Day 18: Like a GIF For Your Yard ⌚ Day 19: Medicine for Rudolph ⌚ Day 20: Infinite Elves and Infinite Houses ⌚ Day 21: RPG Simulator 20XX ⌚ Day 22: Wizard Simulator 20XX ⌚ Day 23: Opening the Turing Lock ⌚ Day 24: It Hangs in the Balance ⌚ Day 25: Let It Snow