Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations TouchToneTommy on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
date handling/arithmetic
- Thread starter HOTLIPS
- Start date
sleipnir214
Programmer
It depends on your math.
Do you want to add six calendar months, or 180 days?
To add six calendar months (2003-09-15 plus 6 months would be 2004-03-15), I'd split the date at the dashes, add 6 to the month value, and if that value is more than 12, subtract 12 from it and add 1 to the year.
To add 180 days, I'd use strtotime() to convert the date string to a Unix time tick, then add 60 seconds/minute * 60 minutes/hour * 24 hours/day * 180 days to the tick number, then use date() to convert it back to a date string.
Want the best answers? Ask the best questions: TANSTAAFL!!
Do you want to add six calendar months, or 180 days?
To add six calendar months (2003-09-15 plus 6 months would be 2004-03-15), I'd split the date at the dashes, add 6 to the month value, and if that value is more than 12, subtract 12 from it and add 1 to the year.
To add 180 days, I'd use strtotime() to convert the date string to a Unix time tick, then add 60 seconds/minute * 60 minutes/hour * 24 hours/day * 180 days to the tick number, then use date() to convert it back to a date string.
Want the best answers? Ask the best questions: TANSTAAFL!!
- Status
Similar threads
- Locked
- Question