Re: Function mktime() documentation question

On Mar 7, 2012, at 4:28 PM, Daniel Brown wrote: > On Wed, Mar 7, 2012 at 15:03, Tedd Sperling <tedd.sperling@gmail.com> wrote: >> Hi gang: >> >> I am using the getdate(mktime()) functions to get month data (i.e., name of month, first >> weekday, last day, number of days). >> >> To get the number of days for a specific month, I use: >> >> // $current_month is the month under question >> >> $next_month = $current_month + 1; >> $what_date = getdate(mktime(0, 0, 0, $next_month, 0, $year)); >> $days_in_current_month = $what_date['mday']; >> >> That works for me! >> >> However, if you read the documentation, namely: >> >> http://php.net/manual/en/function.mktime.php >> >> It states: >> >> --- quote >> >> day >> >> The number of the day relative to the end of the previous month. Values 1 to 28, 29, 30 or >> 31 (depending upon the month) reference the normal days in the relevant month. Values less than 1 >> (including negative values) reference the days in the previous month, so 0 is the last day of the >> previous month, -1 is the day before that, etc. Values greater than the number of days in the >> relevant month reference the appropriate day in the following month(s). >> --- un-quote >> >> From my code, the number of days in a month can be found by using 0 as the first index of >> the next month -- not the last day of the previous month. > > I fail to follow. Your code is looking ahead to next month > (April), then using the 0 day, which means it's getting the last day > (31) of the current month (March). There's no such thing as a 0 > April, hence anything less than one should count backward. > > -- > </Daniel P. Brown> Daniel: Yes, it uses next month to figure out this month -- that's my point. See my reply to Mike Ford. Cheers, tedd _____________________ tedd.sperling@gmail.com http://sperling.com