FUCK YOU PHP, WHY THE FUCK DO YOU GIVE ME DECEMBER 1ST WHEN I DO
strtotime('-1 month', '12/31/2015)
USING DateTime PRODUCES THE SAME FUCKING RESULT. ARE YOU FUCKING RETARDED OR WHAT?
YEAH I KNOW NOVEMBER DOESN'T HAVE 31ST BUT YOU COULD AT LEAST RETURN 30TH OR EVEN RAISE A WARNING, YOU FUCKING PIECE OF SHIT.