From date to week number

Not sure if you are talking about day number or week number but both are basic Googleable questions

php week number from date
https://stackoverflow.com/questions/9567673/get-week-number-in-the-year-from-a-date-php

php day number from date
https://stackoverflow.com/questions/10266706/how-to-get-number-of-the-day-from-date

Thank you for the helpful tip. Works great