Re: Function mktime() documentation question

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On Wed, Mar 7, 2012 at 15:03, Tedd Sperling <tedd.sperling@xxxxxxxxx> 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>
Network Infrastructure Manager
http://www.php.net/

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